Physics
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Forces and motion (push, pull, and friction)
SubtopicForces and motion (push, pull, and friction) under Physics for Grade 4 IGCSE.
Preview questions (no answers)
- 1.
Using a towel to dry your hands involves rubbing. What force is created between the towel and your skin?
A.Gravity
B.Magnetism
C.Friction
D.A pull
- 2.
When you jump up into the air, why do you come back down?
A.Because of air resistance
B.Because of a push from the clouds
C.Because of the pull of gravity
D.Because of friction
- 3.
What is the force that acts between a car's tires and the road?
A.Gravity
B.Friction
C.Magnetism
D.Electricity
- 4.
Which of these is a force that acts without touching?
A.Pushing a cart
B.Pulling a wagon
C.Gravity
D.Friction
- 5.
What happens to a spring when you hang a heavy weight from it?
A.It gets shorter because of the push
B.It stays the same length
C.It stretches because of the pull of gravity on the weight
D.It disappears
- 6.
In which direction does friction always act on a moving object?
A.In the same direction as the motion
B.In the opposite direction to the motion
C.Towards the center of the Earth
D.Upwards towards the sky
- 7.
A magnet can move a paperclip without touching it. This is because magnetism is what type of force?
A.Contact force
B.Non-contact force
C.Friction force
D.Resistive force
- 8.
A feather and a lead ball are dropped inside a tube where all the air has been pumped out (a vacuum). Which statement is correct?
A.The lead ball falls faster because it is heavier
B.The feather falls faster because it is lighter
C.They fall at the same rate because there is no air resistance
D.They both float because there is no air
- 9.
A ball is rolling down a hill. Which two forces are primarily acting on it to make it move and eventually stop at the bottom?
A.Gravity and Friction
B.Magnetism and Air Resistance
C.Push and Pull
D.Electricity and Gravity
- 10.
Why is it harder to walk on ice than on a sidewalk?
A.Ice has more friction than the sidewalk
B.Ice has less friction, so your shoes cannot grip the surface
C.Gravity is stronger on ice
D.Ice is a solid and the sidewalk is not
Download the worksheet for Physics - Forces and motion (push, pull, and friction) to practice offline. It includes additional chapter-level practice questions.
Gravity and its effects
SubtopicGravity and its effects under Physics for Grade 4 IGCSE.
Preview questions (no answers)
- 1.
If you trip while running, which force pulls you toward the pavement?
A.Friction
B.Air resistance
C.Gravity
D.Push
- 2.
Why do stars stay together in a galaxy?
A.They are tied with cosmic strings
B.Gravity pulls them toward each other
C.They are stuck to the sky
D.Magnetism
- 3.
What is the relationship between mass and gravity?
A.More mass means less gravity
B.Mass and gravity are not related
C.More mass means a stronger gravitational pull
D.Only objects with no mass have gravity
- 4.
Which of these is NOT true about gravity?
A.It pulls things down
B.It can be measured
C.It only acts on heavy things
D.It keeps us on the ground
- 5.
An astronaut performs a jumping test on three different planets using the same amount of effort each time. The diagram shows the maximum height reached on each planet. Based on this evidence, which planet exerts the strongest gravitational pull on the astronaut?
A.Planet Y
B.Planet X
C.Planet Z
D.The gravitational pull is the same on all three planets
- 6.
What would be the effect on a person's weight if they stood on a planet with the same size as Earth but twice the mass?
A.Their weight would be halved.
B.Their weight would stay the same.
C.Their weight would double.
D.Their weight would become zero.
- 7.
What is the main source of the gravitational force that keeps planets in our solar system from flying off into space?
A.The Earth
B.The Sun
C.The Moon
D.Black holes
- 8.
A spacecraft is positioned at a point exactly halfway between the Earth and the Moon. Both the Earth and the Moon exert a gravitational pull on the spacecraft. If the Earth has much more mass than the Moon, which statement is true about the gravitational pull at this midpoint?
A.The Moon's pull is stronger because smaller objects have a more concentrated gravitational force.
B.The gravitational pull from both the Earth and the Moon is exactly the same because the distance is equal.
C.The Earth's pull is stronger because gravity is determined by the mass of the objects when the distance is the same.
D.Gravity does not exist in the space between the Earth and the Moon, so there is no pull at all.
- 9.
An astronaut on the Moon drops a hammer. Which path will the hammer follow?
A.It will float away into space
B.It will fall slowly toward the Moon's surface
C.It will stay exactly where it was released
D.It will fall at the same speed as on Earth
- 10.
If you are in a lift (elevator) and the cable breaks, why do you feel weightless while falling?
A.Gravity has stopped acting on you
B.You and the lift are falling at the same rate due to gravity
C.Air resistance is pushing you up
D.The lift's speed cancels out gravity
Download the worksheet for Physics - Gravity and its effects to practice offline. It includes additional chapter-level practice questions.
Magnetism: Magnetic materials and poles
SubtopicMagnetism: Magnetic materials and poles under Physics for Grade 4 IGCSE.
Preview questions (no answers)
- 1.
Which material would be the best choice to make a toy that sticks to a magnetic board?
A.Plastic
B.Steel
C.Wood
D.Rubber
- 2.
A magnet is used in a compass because it reacts to...
A.The Earth's magnetic field
B.The wind speed
C.The amount of sunlight
D.The temperature of the air
- 3.
Which of these is a magnetic material often found in a toolbox?
A.A plastic handle
B.A steel screwdriver tip
C.A brass hinge
D.A copper wire
- 4.
What happens if you turn one of two attracting magnets around?
A.They will still attract
B.They will now repel
C.They will become weaker
D.They will stop being magnets
- 5.
Which of these actions could cause a permanent magnet to lose its magnetism?
A.Painting it a different color
B.Dropping it many times or heating it
C.Putting it in a dark room
D.Washing it with soap
- 6.
If you see a magnet labeled with 'N' and 'S', what do these letters represent?
A.Nice and Strong
B.Negative and Soft
C.North and South
D.Near and Side
- 7.
What is the force that pulls a magnet and an iron nail together?
A.Friction
B.Electrostatics
C.Magnetism
D.Air pressure
- 8.
If you stroked an iron bar with a magnet to magnetize it, but then hammered the iron bar vigorously, what would happen?
A.It would become a stronger magnet.
B.It would lose its magnetism because the domains are shaken out of alignment.
C.It would change its North pole into a South pole.
D.The iron would turn into steel.
- 9.
A magnet is used to lift a heavy iron block. If a small piece of wood is placed between the magnet and the block, the block falls. Why?
A.Wood is a magnetic insulator that destroys magnetism.
B.The wood increases the distance between the magnet and the iron, weakening the force.
C.The wood carries the magnetism away from the block.
D.The wood is repelled by the magnet.
- 10.
Why is steel often preferred over pure iron for making permanent magnets?
A.Steel is much cheaper than iron.
B.Steel is a harder magnetic material and keeps its magnetism much longer.
C.Steel is not a magnetic material until it is painted.
D.Iron is too heavy to be a magnet.
Download the worksheet for Physics - Magnetism: Magnetic materials and poles to practice offline. It includes additional chapter-level practice questions.
Light: Sources, reflections, and how shadows are formed
SubtopicLight: Sources, reflections, and how shadows are formed under Physics for Grade 4 IGCSE.
Preview questions (no answers)
- 1.
What happens if you place an opaque object in the path of light rays?
A.The light bends around it
B.A shadow is formed behind it
C.The light passes through it easily
D.The light turns into heat
- 2.
Why do we use shiny foil on some road signs?
A.To make them heavy
B.To make them reflect car headlights
C.To help them absorb light
D.To make them transparent
- 3.
Which of these is a source of light often used on a birthday cake?
A.Icing
B.A candle flame
C.A plastic topper
D.A paper plate
- 4.
If you are standing outside in the sun, where is the sun located relative to your shadow?
A.On the same side as your shadow
B.Directly inside your shadow
C.On the opposite side of your shadow
D.Shadows do not depend on the sun
- 5.
In the diagram below, light from a torch passes through Sheet A and Sheet B, but it is blocked when it hits Sheet C. This creates a dark shadow on the wall. Which of the three sheets is made of an opaque material?
A.Sheet A
B.Sheet B
C.Sheet C
D.All of the sheets
- 6.
A student places a toy in the middle of a room and turns on two different lamps at the same time, as shown in the diagram. How many separate shadows of the toy will be formed on the floor?
A.Zero shadows
B.Only one shadow
C.Two separate shadows
D.Four separate shadows
- 7.
Which of the following is the best definition of a 'ray' of light?
A.A circle of light around a source
B.A straight line showing the path light takes
C.A type of shadow
D.The heat felt from a lamp
- 8.
A student looks through a small pinhole into a dark box. Inside the box, there is one single small glowing bulb and a flat mirror on the back wall. The student observes two distinct bright spots of light inside the box. Which statement best explains this observation?
A.The mirror acts as a second light source that produces its own light inside the box.
B.The pinhole acts like a lens that splits the light from the bulb into two separate beams.
C.The eye receives light directly from the bulb and also light that has reflected off the mirror.
D.One spot is the actual bulb, and the other spot is a shadow cast by the pinhole.
- 9.
If you are in a dark room and shine a torch on a mirror, where will the 'spot' of light appear?
A.On the mirror itself
B.On whatever surface the reflected ray hits
C.Inside the torch
D.It will not appear anywhere because mirrors don't show light
- 10.
Which of these objects is 'luminous'?
A.The Moon
B.A Diamond
C.A Star
D.A Polished Brass Plate
Download the worksheet for Physics - Light: Sources, reflections, and how shadows are formed to practice offline. It includes additional chapter-level practice questions.
Sound: Vibrations, volume, and pitch
SubtopicSound: Vibrations, volume, and pitch under Physics for Grade 4 IGCSE.
Preview questions (no answers)
- 1.
Which of these sounds would have a low volume and a high pitch?
A.A loud whistle
B.A quiet mouse squeak
C.A loud lion roar
D.A quiet drum beat
- 2.
If you touch a speaker while music is playing, what will you feel?
A.It will feel cold
B.It will feel like it is vibrating
C.It will feel like it is spinning
D.It will feel perfectly still
- 3.
Which of these states of matter can sound NOT travel through?
A.Solids
B.Liquids
C.Gases
D.A vacuum (empty space)
- 4.
What do we call a person who cannot hear sounds?
A.Blind
B.Deaf
C.Mute
D.Numb
- 5.
If a sound has a high frequency, how would we describe it?
A.A loud sound
B.A high-pitched sound
C.A quiet sound
D.A low-pitched sound
- 6.
Which of these strings on a harp would likely produce the lowest note?
A.The thinnest and shortest string
B.The thickest and longest string
C.A thin but long string
D.A thick but short string
- 7.
What must happen for a sound to be produced?
A.Something must move very slowly
B.Something must vibrate
C.The air must be completely still
D.Light must shine on an object
- 8.
A student is playing a flute. To play a higher note, the student covers fewer holes with their fingers. Why does this work?
A.It makes the vibrating column of air shorter, which increases the frequency.
B.It makes the vibrating column of air longer, which decreases the frequency.
C.It allows more air to escape, which increases the volume.
D.It makes the flute heavier, which changes the vibration.
- 9.
Why do people working at airports on the runway wear heavy earmuffs?
A.To keep their ears warm from the jet engines.
B.To block high-amplitude vibrations that could damage their eardrums.
C.To help them hear the low-frequency vibrations of the planes better.
D.To change the pitch of the jet engines so they sound like music.
- 10.
If a sound wave is described as having 'high pitch and high volume', which of the following oscilloscope readings would represent it?
A.Waves that are very close together and very tall.
B.Waves that are very spread apart and very short.
C.Waves that are very close together and very short.
D.Waves that are very spread apart and very tall.
Download the worksheet for Physics - Sound: Vibrations, volume, and pitch to practice offline. It includes additional chapter-level practice questions.
Electricity: Simple series circuits and components
SubtopicElectricity: Simple series circuits and components under Physics for Grade 4 IGCSE.
Preview questions (no answers)
- 1.
Which component in the circuit diagram below is responsible for providing the energy to make the electricity flow?
A.The Lamp
B.The Switch
C.The Battery
D.The Wire
- 2.
What is a cell in an electrical circuit?
A.Another name for a wire
B.A single battery unit
C.A type of light bulb
D.A switch that stays open
- 3.
How many paths can electricity follow in a simple series circuit?
A.Three paths
B.Two paths
C.No paths
D.Only one path
- 4.
Which of these is the correct symbol for a lamp?
A.A circle with an 'X' inside
B.A rectangle
C.A straight line
D.Two parallel lines of different lengths
- 5.
Anish is building a simple series circuit. He notices that the lamp is very dim. What could he add to the circuit to make the lamp shine brighter?
A.Add another lamp in series
B.Add another battery (cell) in series
C.Add a longer wire
D.Add an open switch
- 6.
Looking at the circuit diagram provided, what would happen if you added a second lamp in series with the first one?
A.Both lamps would be dimmer than the single lamp.
B.Both lamps would be brighter than the single lamp.
C.The first lamp would stay the same and the second would not light up.
D.The battery would stop working immediately.
- 7.
What component is needed to prevent a circuit from staying on all the time?
A.A longer wire
B.A second lamp
C.A switch
D.A stronger battery
- 8.
Sarah is building a model lighthouse for her school project. She connects two lamps to a single battery in a series circuit. While testing her project, she notices that one lamp is loose and accidentally falls out of its holder. What will happen to the second lamp in the lighthouse?
A.The second lamp will stay lit with the same brightness.
B.The second lamp will get much brighter and then burn out.
C.The second lamp will turn off because the circuit path is broken.
D.The second lamp will stay lit but become much dimmer.
- 9.
Sarah is building a model lighthouse for her school project. She connects two batteries in a row to a single lamp to make it shine brighter. However, as she adds more components, she notices the light getting dimmer. In the circuit diagram shown, Sarah has added an extra component at point . Based on the rules of series circuits, what component could be at to make the lamp dimmer, and why?
A.A second lamp, because it shares the energy from the batteries with the first lamp.
B.An extra battery, because it provides more energy to the lamp.
C.A closed switch, because it allows the electricity to flow through the lamp.
D.A copper wire, because it is a good conductor and helps the current flow.
- 10.
Emily is comparing two circuits. Circuit A has one battery and one bulb. Circuit B has one battery and two bulbs in a series. Which statement is true about the current in Circuit B?
A.The current is higher in Circuit B because there are more bulbs.
B.The current is lower in Circuit B because the two bulbs resist the flow more than one.
C.The current is the same in both circuits because the battery is the same.
D.There is no current in Circuit B because electricity cannot pass through two bulbs.
Download the worksheet for Physics - Electricity: Simple series circuits and components to practice offline. It includes additional chapter-level practice questions.