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Motion & energy Choose questions individually, practise online, or create a worksheet with matching answers. Counts include generated variants, not only authored originals.
Sample exercises Grades 7–11 · Motion & energy Motion, forces and energy: which term fits this description?
The total length of the path travelled by an object. Distance Speed Kinetic energy Equilibrium Answer and explanation Distance
Distance: The total length of the path travelled by an object.
Grades 7–11 · Motion & energy Motion, forces and energy: which term fits this description?
The directed change from initial position to final position. Acceleration Impulse Displacement Vector Answer and explanation Displacement
Displacement: The directed change from initial position to final position.
Grades 7–11 · Motion & energy Motion, forces and energy: which term fits this description?
The rate at which distance is travelled. Impulse Weight Speed Elastic collision Answer and explanation Speed
Speed: The rate at which distance is travelled.
Grades 7–11 · Motion & energy Motion, forces and energy: which term fits this description?
The rate of change of position, including direction. Velocity Vector Tension Kinetic energy Answer and explanation Velocity
Velocity: The rate of change of position, including direction.
Grades 7–11 · Motion & energy Motion, forces and energy: which term fits this description?
The rate of change of velocity. Acceleration Gravitational potential energy Speed Net force Answer and explanation Acceleration
Acceleration: The rate of change of velocity.
Grades 7–11 · Motion & energy Motion, forces and energy: which term fits this description?
The vector sum of all external forces acting on an object. Net force Scalar Power Speed Answer and explanation Net force
Net force: The vector sum of all external forces acting on an object.
Study notes Use the net force and consistent SI units for a constant-mass object.
Grades 8–11 Velocities include direction; a negative result can represent decreasing positive velocity.
Grades 8–11 Displacement is signed; distance is the length of the path.
Grades 7–10 Square speed before multiplying. This is the classical translational kinetic-energy model.
Grades 9–12 Height is measured above the chosen reference level. Use the value of g stated in the question.
Grades 8–11 Momentum has direction; retain the sign of velocity in one dimension.
Grades 9–12 For a constant force parallel to displacement, cos θ = 1.
Grades 8–11 One watt is one joule per second.
Grades 8–11 Force is perpendicular to the surface; pascals are newtons per square metre.
Grades 8–12 Assume constant specific heat and no phase change.
Grades 9–12 Assume the spring is within its linear elastic range; convert centimetres to metres.
Grades 9–12 Useful output cannot exceed total input in this simple energy accounting model.
Grades 7–11 Rules, conditions and small examples in one printable reference.
Grades 7–8 Rules, conditions and small examples in one printable reference.
Grades 9–10 Rules, conditions and small examples in one printable reference.
Grades 11–12 20 key concepts, retrieval questions and a learning checkpoint.
Grades 7–11 Zero net force means zero acceleration, not necessarily zero velocity. An object can move steadily in equilibrium.
Grades 7–11 Speed is the magnitude of velocity. Acceleration is a change in velocity per unit time.
Grades 8–11 Speed is the magnitude of velocity. Acceleration is a change in velocity per unit time.
Grades 8–11 Identify where energy enters, is stored and is transferred out.
Grades 6–10 Identify where energy enters, is stored and is transferred out.
Grades 6–10