CIE Physics IGCSE Unit 1: Force and Motion Quiz

Which of the following instruments would be most appropriate for measuring the diameter of a human hair?

• Ruler
• Measuring tape
• Micrometer screw gauge
• Measuring cylinder

What does the gradient of a distance-time graph represent?

• Acceleration
• Velocity
• Force
• Momentum

If an object's speed is changing, what can we conclude about its motion?

• It has constant velocity
• It is accelerating
• It has zero momentum
• It is in equilibrium

Which of the following is true about the acceleration of free fall near Earth's surface?

• It varies greatly with altitude
• It is constant
• It depends on the mass of the falling object
• It increases as an object falls

What does a curved line in a speed-time graph indicate?

• Constant velocity
• Constant acceleration
• Changing acceleration
• Zero velocity

What is the relationship between mass and weight?

• They are the same thing
• Weight is always greater than mass
• Weight depends on gravitational field strength, mass doesn't
• Mass depends on gravitational field strength, weight doesn't

What is the gravitational field strength on Earth approximately equal to?

• 5 N/kg
• 10 N/kg
• 15 N/kg
• 20 N/kg

Which of Newton's laws states that an object has a constant velocity unless acted on by a resultant force?

• Newton's First Law
• Newton's Second Law
• Newton's Third Law
• Newton's Law of Gravitation

According to Newton's Second Law, what is force equal to?

• Mass divided by acceleration
• Mass plus acceleration
• Mass multiplied by acceleration
• Mass minus acceleration

What does Newton's Third Law state?

• Force equals mass times acceleration
• Objects move at constant velocity unless acted upon by a force
• Every action force has an equal and opposite reaction force
• The force of gravity is proportional to the product of the masses