IMO Practice Test — Push, Pull & Motion
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
Friction is both helpful and harmful. It is harmful because it…
Wears out machine parts
Helps us walk
Stops a car
Grips the road
Explanation: Friction wears parts down — a harmful effect.
Question 2 of 6
hard
Why is it easier to move a shopping trolley than a parked car by hand?
The car is lighter
The car is smaller
The trolley has no wheels
The trolley is lighter, needing less force
Explanation: Lighter objects need less force to move.
Question 3 of 6
hard
A compass works because its tiny magnet always lines up pointing…
North-South
Up-Down
To the Sun
In circles
Explanation: A compass needle is a magnet that points North-South.
Question 4 of 6
medium
A football rolls and slowly stops on grass even with no kick. What slows it?
Its size
Its colour
The sky
A force called friction
Explanation: Friction with the grass slows the ball.
Question 5 of 6
hard
In space, a pushed ball keeps moving for a long time because there is almost no…
Friction to slow it
Light
Colour
Sound
Explanation: With little friction, motion continues much longer.
Question 6 of 6
hard
On the Moon, gravity is weaker, so a child could jump…
Into the ground
Not at all
Only sideways
Much higher than on Earth
Explanation: Weaker Moon gravity lets you jump higher.