Force, Work and Energy
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Types of Force (Gravity, Friction)
SubtopicTypes of Force (Gravity, Friction) under Force, Work and Energy for Grade 4 ICSE.
Preview questions (no answers)
- 1.
Which force makes it difficult to slide a heavy box across a rough floor?
A.Gravity
B.Friction
C.Magnetic force
D.Solar force
- 2.
In science, 'work' is said to be done only when a force ________.
A.Is very strong
B.Makes an object move
C.Is applied by a human
D.Is applied for a long time
- 3.
Look at the diagram of the bouncing ball. Which force causes the ball to come back down after each bounce?
A.Magnetic force
B.Elastic force
C.Gravity
D.Friction
- 4.
Follow the path of the wagon in the diagram. What is being done when the wagon moves over a distance?
A.Nothing
B.Work
C.Gravity only
D.Energy loss only
- 5.
Which of the following would produce the most heat due to friction?
A.Rubbing two ice cubes together
B.Rubbing two pieces of sandpaper together
C.Rubbing two silk cloths together
D.Rubbing two oiled metal plates together
- 6.
Which force is responsible for the formation of tides in the oceans?
A.Earth's friction
B.Gravitational pull of the Moon and the Sun
C.Wind force
D.Magnetic force of the Earth
- 7.
If you try to slide a heavy box across a carpet, you have to push hard. This resistance you feel is due to:
A.Gravity
B.Magnetism
C.Friction
D.The weight of the carpet
- 8.
What would happen to your ability to write on a chalkboard if the board were perfectly smooth and oily?
A.The writing would be clearer because there is no friction.
B.You would not be able to write because the chalk needs friction to wear off onto the board.
C.The chalk would stick better because of the oil.
D.Gravity would make the chalk fall off faster.
- 9.
Why does a ball rolling on a flat grass field eventually come to a stop?
A.The Earth's gravity stops pulling it.
B.The ball runs out of its internal force.
C.Friction between the ball and the grass opposes its motion.
D.The magnetic field of the Earth traps the ball.
- 10.
Which of these surfaces would likely produce the least amount of friction for a sliding block of wood?
A.A sheet of sandpaper
B.A concrete sidewalk
C.A slab of wet ice
D.A dry wooden floor
Download the worksheet for Force, Work and Energy - Types of Force (Gravity, Friction) to practice offline. It includes additional chapter-level practice questions.
Concept of Work
SubtopicConcept of Work under Force, Work and Energy for Grade 4 ICSE.
Preview questions (no answers)
- 1.
When you stretch a rubber band, work is done because the rubber band:
A.Snaps
B.Changes its shape and size
C.Turns red
D.Stays small
- 2.
What is the primary requirement for work to be done besides applying force?
A.Movement
B.Rest
C.Sound
D.Smell
- 3.
To do more work on a box, you could:
A.Push it over a longer distance
B.Look at it for a longer time
C.Wait for the sun to set
D.Paint the box blue
- 4.
When you hit a tennis ball with a racket, the racket does work on the ball because:
A.The ball is yellow
B.The ball changes its direction and moves
C.The racket is light
D.The net is tall
- 5.
Complete the relationship: More Force + More Distance = ______.
A.Less Work
B.Zero Work
C.More Work
D.Constant Work
- 6.
If an astronaut in space pushes a floating tool and it moves away, is work done?
A.No, because there is no gravity
B.Yes, because force was applied and the tool moved
C.No, because there is no air
D.Yes, because the astronaut is an adult
- 7.
When you hammer a nail into a piece of wood, the hammer does work on the nail. Why?
A.Because the hammer is heavy
B.Because the hammer exerts force and the nail moves into the wood
C.Because the wood is fixed
D.Because the nail is shiny
- 8.
Which of the following describes a situation where work is NOT being done on a ball?
A.A ball being kicked across a field
B.A ball being caught and stopped
C.A ball resting in a player's hand
D.A ball being thrown into the air
- 9.
You are pushing a crate. If the floor is very oily (less friction), you need less force to move it the same distance. How does this affect the work YOU do?
A.You do more work
B.You do less work
C.The work remains the same
D.No work is done
- 10.
If a crane lifts a car in , and another crane lifts the same car in , how does the work done by the two cranes compare?
A.The first crane does more work
B.The second crane does more work
C.Both cranes do the same amount of work
D.The work done depends on the speed
Download the worksheet for Force, Work and Energy - Concept of Work to practice offline. It includes additional chapter-level practice questions.
Simple Machines
SubtopicSimple Machines under Force, Work and Energy for Grade 4 ICSE.
Preview questions (no answers)
- 1.
When we use a crowbar to pry open a wooden crate, the crowbar acts as a:
A.Wedge
B.Lever
C.Pulley
D.Inclined plane
- 2.
A garden fork used to dig into the soil works as a:
A.Wedge
B.Pulley
C.Screw
D.Wheel
- 3.
Which simple machine is found on a sailboat and is used to pull up the sails?
A.Wedge
B.Inclined plane
C.Pulley
D.Screw
- 4.
The primary purpose of a fixed pulley is to:
A.Increase the load
B.Change the direction of force
C.Decrease the weight
D.Make the rope longer
- 5.
Why is a screw considered better than a nail for holding things together?
A.It is easier to hammer
B.Its threads provide more friction and grip
C.It is made of softer metal
D.It weighs less
- 6.
Mechanical energy is the sum of an object's kinetic energy and its ____.
A.Heat energy
B.Potential energy
C.Sound energy
D.Light energy
- 7.
A broom used for sweeping the floor is an example of which class of lever?
A.First class
B.Second class
C.Third class
D.Fixed class
- 8.
Identify the energy change when a battery-operated toy car moves on the floor.
A.Kinetic to Chemical
B.Chemical to Electrical to Kinetic
C.Electrical to Heat only
D.Sound to Mechanical
- 9.
What kind of lever is a pair of tweezers?
A.Class 1 lever
B.Class 2 lever
C.Class 3 lever
D.It is a complex machine
- 10.
A ramp and a winding road up a mountain are both examples of which simple machine?
A.Screw
B.Inclined Plane
C.Lever
D.Wedge
Download the worksheet for Force, Work and Energy - Simple Machines to practice offline. It includes additional chapter-level practice questions.
Forms of Energy and Sources
SubtopicForms of Energy and Sources under Force, Work and Energy for Grade 4 ICSE.
Preview questions (no answers)
- 1.
Which of these is the main source of heat for the Earth?
A.The Moon
B.The Sun
C.The Stars
D.Volcanoes
- 2.
A torch uses cells to provide ________ energy.
A.Sound
B.Wind
C.Electrical
D.Hydro
- 3.
What type of energy is being utilized by a person swimming?
A.Solar energy
B.Muscular energy
C.Electrical energy
D.Light energy
- 4.
Which of these is a fossil fuel?
A.Wood
B.Wind
C.Natural Gas
D.Sunlight
- 5.
Which of these is a source of chemical energy that humans use to stay active and grow?
A.Sunlight
B.Batteries
C.Food
D.Electricity
- 6.
A magnifying glass can start a fire by focusing which type of energy onto a piece of paper?
A.Sound energy
B.Solar (Heat) energy
C.Magnetic energy
D.Electrical energy
- 7.
Which form of energy is produced when you clap your hands?
A.Electrical energy
B.Light energy
C.Sound energy
D.Magnetic energy
- 8.
Which of these energy sources would be least effective for a house located in a deep, narrow valley where the sun shines for only 2 hours a day?
A.Wind turbines on the ridges
B.Solar panels on the roof
C.Hydroelectric power from a nearby stream
D.Wood-burning stove
- 9.
Which form of energy is stored in the bonds of atoms and molecules in substances like wood, coal, and food?
A.Mechanical energy
B.Chemical energy
C.Thermal energy
D.Radiant energy
- 10.
In a steam locomotive (train), what causes the wheels to turn?
A.The weight of the coal pushing the wheels
B.The pressure of expanding steam (kinetic energy) created by heating water
C.The magnetic attraction between the tracks and the engine
D.The light from the fire hitting the pistons
Download the worksheet for Force, Work and Energy - Forms of Energy and Sources to practice offline. It includes additional chapter-level practice questions.