Forces and Motion
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Types of Forces (Contact and Non-contact)
SubtopicTypes of Forces (Contact and Non-contact) under Forces and Motion for Grade 6 IB.
Preview questions (no answers)
- 1.
Which non-contact force is responsible for the tides in Earth's oceans?
A.The magnetic pull of the Sun
B.The gravitational pull of the Moon
C.Static electricity in the water
D.Friction from the wind
- 2.
Which of the following is true about all contact forces?
A.They only work on metal objects
B.They only work when two objects are physically touching
C.They only pull objects downward
D.They can act across large distances in space
- 3.
Which force keeps the Earth's atmosphere from drifting away into space?
A.Magnetic force
B.Electrostatic force
C.Gravity
D.Tension
- 4.
In a game of tug-of-war, the force that is transmitted through the rope is called...
A.Tension
B.Friction
C.Gravity
D.Air resistance
- 5.
If an object is stationary on a desk, which of the following must be true?
A.There are no forces acting on it at all
B.The forces acting on it are balanced
C.The force of gravity has stopped acting on it
D.The force of friction is greater than its weight
- 6.
Two people are pushing a stalled car. Person X pushes with and Person Y pushes with in the same direction. What is the total applied force?
A.B.C.D. - 7.
Which of the following correctly pairs a force with its type?
A.Friction - Non-contact
B.Magnetic - Contact
C.Gravity - Non-contact
D.Air Resistance - Non-contact
- 8.
Two objects with the same charge are moved closer together. What happens to the non-contact electrostatic force between them?
A.The repulsive force increases according to the inverse square of the distance.
B.The attractive force increases as the distance decreases.
C.The force disappears once they are close enough for their fields to overlap.
D.The force remains constant because the amount of charge has not changed.
- 9.
Why do stars and planets form into spheres rather than cubes or irregular shapes?
A.The non-contact force of gravity pulls equally from all directions toward the center of mass.
B.The rotation of the universe creates a contact force that rounds off the corners.
C.Space is a vacuum, and cubes cannot exist in a vacuum because of air pressure.
D.Magnetic fields naturally repel edges and corners, forcing matter into a curve.
- 10.
A person is using a pulley system to lift a heavy crate. The person pulls down on the rope, and the crate moves up. What is the primary contact force that acts directly on the crate to lift it?
A.Tension
B.Gravity
C.Applied force from the hand
D.Friction
Download the worksheet for Forces and Motion - Types of Forces (Contact and Non-contact) to practice offline. It includes additional chapter-level practice questions.
Gravity, Friction, and Magnetism
SubtopicGravity, Friction, and Magnetism under Forces and Motion for Grade 6 IB.
Preview questions (no answers)
- 1.
Which force is mainly responsible for wearing down the tread on car tires over time?
A.Gravity
B.Magnetism
C.Friction
D.Air pressure
- 2.
Which of the following is true about a permanent magnet?
A.It only works when connected to a battery
B.It keeps its magnetism for a long time
C.It only attracts plastic
D.It loses its magnetism if it gets wet
- 3.
If you are pushing a heavy box and it is not moving, the force of friction is ________ the force you are pushing with.
A.Equal to
B.Smaller than
C.Greater than
D.Not related to
- 4.
Why do some high-speed trains use magnets to float above the tracks (Maglev trains)?
A.To increase the weight of the train
B.To eliminate friction between the train and the track
C.To use gravity to pull the train forward
D.To make the train look modern
- 5.
When you drop a ball, it accelerates toward the ground. This acceleration is caused by:
A.Balanced forces
B.An unbalanced force called gravity
C.The force of air resistance pushing it down
D.The magnetic attraction of the Earth's core
- 6.
Earth's magnetic North Pole is actually close to which geographic location?
A.The Geographic South Pole
B.The Geographic North Pole
C.The Equator
D.The center of the Earth
- 7.
Which of these factors does NOT affect the amount of friction between two solid objects?
A.The roughness of the surfaces
B.The force pressing the surfaces together
C.The speed at which the objects are moving (for sliding friction)
D.The color of the objects
- 8.
A student wants to design a hovercraft. What is the main scientific challenge regarding forces they must overcome?
A.Eliminating the pull of gravity entirely
B.Reducing the sliding friction between the craft and the surface by using a cushion of air
C.Creating a magnetic field strong enough to repel the Earth's crust
D.Increasing the air resistance to slow the craft down
- 9.
Why is the weight of an object on Jupiter much greater than its weight on Earth, even though the object's mass is the same?
A.Jupiter has a much thicker atmosphere that pushes down on objects
B.Jupiter is much further from the Sun
C.Jupiter has a much greater mass than Earth, resulting in a stronger gravitational field
D.Jupiter's rapid rotation creates a force that pulls objects toward its surface
- 10.
If you place a North pole of one magnet near the South pole of another magnet, the potential energy of the system:
A.Increases as you pull them further apart
B.Decreases as you pull them further apart
C.Stays the same regardless of distance
D.Is zero because they attract each other
Download the worksheet for Forces and Motion - Gravity, Friction, and Magnetism to practice offline. It includes additional chapter-level practice questions.
Balanced and Unbalanced Forces
SubtopicBalanced and Unbalanced Forces under Forces and Motion for Grade 6 IB.
Preview questions (no answers)
- 1.
Which of the following can cause an object to slow down?
A.A balanced force
B.A force acting in the opposite direction of motion
C.The absence of any force
D.A force acting in the same direction as motion
- 2.
Forces that cancel each other out are called:
A.Resultant forces
B.Balanced forces
C.Strong forces
D.Weak forces
- 3.
If you are pulling a wagon and it starts to move, the force you are applying is:
A.Balanced by the friction
B.Unbalanced
C.Equal to the weight of the wagon
D.Less than the friction
- 4.
What happens to an object when the net force is NOT zero?
A.It remains stationary
B.It accelerates (changes velocity)
C.Its mass increases
D.It disappears
- 5.
If you push a wall with a force of , the wall does not move. What is the net force on the wall?
A.B.C.D. - 6.
An object has a net force of . Which of the following states of motion is NOT possible for this object?
A.Resting on a table.
B.Moving at in a straight line.
C.Accelerating at .
D.Floating in space at a steady speed.
- 7.
Which statement about force pairs is true in the context of balanced forces on a single object?
A.Balanced forces must act on the same object.
B.Balanced forces must act in the same direction.
C.Balanced forces must be unequal in size.
D.Balanced forces only happen in a vacuum.
- 8.
When a marble is dropped into a jar of thick honey, it quickly reaches a very slow, constant speed. At this point, the net force on the marble is:
A.Equal to the weight of the marble.
B.Equal to the upward drag of the honey.
C.Zero.
D.Downward, because it is still falling.
- 9.
A comet is traveling through the vacuum of space, far from any stars or planets. If no forces act on it, what will happen to its velocity?
A.It will eventually slow down and stop.
B.It will continue at a constant velocity.
C.It will speed up due to inertia.
D.It will start moving in a circle.
- 10.
If you push a heavy box across a floor at a constant velocity, the force you apply must be:
A.Greater than the force of friction.
B.Less than the force of friction.
C.Equal to the force of friction.
D.Increasing over time.
Download the worksheet for Forces and Motion - Balanced and Unbalanced Forces to practice offline. It includes additional chapter-level practice questions.
Calculating Speed and Velocity
SubtopicCalculating Speed and Velocity under Forces and Motion for Grade 6 IB.
Preview questions (no answers)
- 1.
If a person runs in , what is their average speed?
A.5 m/s
B.50 m/s
C.8000 m/s
D.4 m/s
- 2.
A car's speedometer shows that it is traveling at . This value is the car's:
A.Average speed
B.Instantaneous speed
C.Velocity
D.Acceleration
- 3.
What happens to the speed of an object if it covers the same distance in less time?
A.The speed decreases
B.The speed increases
C.The speed stays the same
D.The speed becomes zero
- 4.
A toy plane covers in . Its speed is:
A.8 m/s
B.800 m/s
C.90 m/s
D.70 m/s
- 5.
If you travel at a constant speed of , how long does it take?
A.B.C.D. - 6.
A helicopter moves South in . What is its velocity in ?
A.B.C.D. - 7.
A boat travels in . What is its speed in ?
A.B.C.D. - 8.
A satellite orbits the Earth at a speed of . How many kilometers does it travel in ?
A.B.C.D. - 9.
A person walks East in , then West in . What is their average velocity?
A.East
B.East
C.East
D.West
- 10.
If a car travels at and then at , what is the average speed of the car for the entire journey?
A.B.C.D.
Download the worksheet for Forces and Motion - Calculating Speed and Velocity to practice offline. It includes additional chapter-level practice questions.