Skip to content

Course home

Sign up

2.2 Newton’s laws

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334
Question 4
F

A car has a mass of 1200 kg. It accelerates from rest to 20 m/s in 8.0 s along a straight road.

a.

Use the equation: acceleration=change in velocitytime\text{acceleration} = \dfrac{\text{change in velocity}}{\text{time}}acceleration=timechange in velocity​

Calculate the acceleration of the car.

[2]
b.

Use the equation: force=mass×acceleration\text{force} = \text{mass} \times \text{acceleration}force=mass×acceleration

Calculate the resultant force on the car.

[2]
c.

The car then tows a trailer. The total mass of the car and the trailer is 1800 kg.

The resultant force stays the same as in (b).

Calculate the time it now takes to reach 20 m/s from rest.

[3]
Markscheme

2.2 Newton’s laws Questions

  1. GCSE
  2. /Physics
  3. /2.2 Newton’s laws

50 exam-style questions on OCR GCSE Physics 2.2 Newton’s laws, covering 2.2.1 Interactions between objects, 2.2.2 Force pairs in interactions, 2.2.3 Forces as vectors, 2.2.4 Newton's first law, 2.2.5 Resolving forces with vector diagrams, 2.2.6 Forces acting on an isolated object, 2.2.7 Free body diagrams and resultant force, 2.2.8 Free body diagrams for balanced forces, 2.2.9 Newton's second law, 2.2.10 Inertia and inertial mass, 2.2.11 Momentum in collisions, 2.2.12 Relating force, mass, velocity and acceleration, 2.2.13 Work done by a force, 2.2.14 Work, stored energy and units of energy, 2.2.15 Power as the rate of energy transfer, 2.2.16 Newton's third law, and 2.2.17 Circular motion and changing velocity. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank