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Force and Pressure Practice

Solve chapter-level practice questions for Force and Pressure with reveal-only solutions and quick revision support.

Practice Set 1 — Force

Effects of force, contact and non-contact forces.

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Q1.
List the changes a force can bring about in an object.
Q2.
Classify as contact or non-contact: (a) kicking a ball (b) a magnet attracting an iron nail (c) an apple falling from a tree (d) pushing a table.
Q3.
Two people push a box in the same direction with forces 20 N and 30 N. What is the net force?
Q4.
Why does a ball thrown upwards eventually come back down?
Q5.
Give one everyday example each of muscular force and friction.

Practice Set 2 — Pressure

Pressure and area, pressure in fluids, atmospheric pressure.

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Q1.
Why is it easier to cut fruit with a sharp knife than a blunt one?
Q2.
Why are the walls of a dam thicker at the bottom?
Q3.
Why do our ears sometimes feel blocked when a plane takes off?
Q4.
A force of 100 N acts on an area of 2 m². Find the pressure.
Q5.
State one piece of evidence that air exerts pressure.

Quick Q&A Before You Revise

Does a force always cause motion?

No. A force may only change the shape of an object, or two forces may balance so the object does not move. Motion changes only when there is a non-zero net force.

Why does pressure in a liquid increase with depth?

The deeper you go, the greater the weight of the liquid column above that point pressing down, so the pressure is greater.

Is weight a force?

Yes. Weight is the gravitational force with which the Earth pulls an object towards its centre.

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