Question 3
FThe Figure shows the forces acting on a toy car as it moves along a flat floor.
Figure
a.[1]
Name force X.
b.[2]
Calculate the resultant force on the toy car. Give its direction.
c.[1]
Describe the effect of this resultant force on the motion of the toy car.
d.[2]
The driving force decreases to 2.0 N. The friction and air resistance stay the same.
Describe and explain the motion of the toy car now.
2.2 Newton’s laws Questions
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.