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GCSEPhysicsOCRPhysics A (Gateway)Exam Questions2. ForcesNewton's Laws

Newton's Laws (OCR GCSE Physics A (Gateway))

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Newton's Laws

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Newton's Laws

11 mark

The acceleration of a car is 2 m/s2. The mass of the car is 1000 kg.

Calculate the resultant force on the car.

  • 20 N

  • 200 N

  • 2000 N

  • 20000 N

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21 mark

Which of the following describes Newton’s third law?

  • For every action there is an equal and opposite reaction.

  • What goes up must come down.

  • The acceleration that a resultant force produces depends on the size of the force and mass of the object.

  • An object will continue to stay at rest or move with uniform speed unless a force acts on it.

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31 mark

A car and driver with a total mass of 1000 kg is travelling at 20 m/s.

The driver applies the brake and the car comes to a stop in 4 seconds.

What is the mean force on the car?

  • 12.5 N

  • 200 N

  • 5000 N

  • 80 000 N

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41 mark

Four cars of the same mass are shown here.

q11-paper1-oct-nov2020-ocr-gcse-physics

Which car will accelerate?

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    51 mark

    A motorbike travels along a straight flat road.

    The arrows represent the horizontal forces acting on the motorbike.

    q3-paper3-oct-nov2020-ocr-gcse-physics

    Which motorbike is travelling at a uniform velocity?

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      61 mark

      Which statement is an example of Newton’s third law?

      • Doubling the engine force on a car doubles its acceleration.

      • Doubling the engine force on a car halves its acceleration.

      • When a ball is rolling on a table it continues rolling at a steady speed.

      • When you clap your hands each hand experiences a force from the other hand.

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      71 mark

      Which statement is equivalent to the mass of an object?

      • The ratio of acceleration over force

      • The ratio of force over acceleration

      • The ratio of velocity over acceleration

      • The ratio of displacement over acceleration

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      81 mark

      A firework rocket has a mass of 0.1 kg.

      A resultant force of 2 N acts on the rocket.

      What is the acceleration of the rocket?

      • 0.2 m/s2

      • 0.5 m/s2

      • 20 m/s2

      • 200 m/s2

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      91 mark

      A hockey player used pads on her legs to reduce injuries when hit by the ball.

      How do the pads affect the acceleration and force of the ball?

      • The acceleration and force of the ball is increased.

      • The acceleration and force of the ball is decreased.

      • The acceleration of the ball is decreased and the force is increased.

      • The acceleration of the ball is increased and the force is decreased.

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      10
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      Higher Tier Only

      A 2.0 kg ball moving at 0.90 m/s to the right collides with a stationary 3.0 kg ball. After the collision, the 2.0 kg ball comes to a stop.

      What is the velocity of the 3.0 kg ball immediately after the collision?

      Use the Equation Sheet.

      • 0.60 m/s to the left

      • 0.60 m/s to the right

      • 5.4 m/s to the left

      • 5.4 m/s to the right

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