A ball of mass 0.50 kg hits a wall at 8.0 m/s.
It bounces straight back at 6.0 m/s.
What is the size of the change in momentum of the ball?
1.0 kg m/s1.0\ \text{kg m/s}1.0 kg m/s
4.0 kg m/s4.0\ \text{kg m/s}4.0 kg m/s
7.0 kg m/s7.0\ \text{kg m/s}7.0 kg m/s
14 kg m/s14\ \text{kg m/s}14 kg m/s
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.