Karteikarten
Physics Topic 1- Motion and Forces
Karten in diesem Stapel (20)
- 1What is a scalar quantity?A quantity that only has a magnitude or size
- 2Give 3 examples of scalar quantitiesDensity, speed, mass , temperature, distance, energy
- 3What is a vector quantity?A quantity that has both magnitude and an associated direction
- 4Give 3 examples of vector quantitiesDisplacement, force, weight, velocity, acceleration, momentum
- 5How do you work out speed?Distance/ time
- 6How do you work out acceleration?Change in velocity/ time taken
- 7When will an object accelerate?When a resultant force acts on it
- 8What keeps the planet in orbit around the Sun?Gravitational attraction provides a centripetal force that keeps planets in orbit
- 9What is Newtons first law of motion?An object stays in the same state of motion unless a resultant force acts on it
- 10What happens if the forces acting on an object are balanced?The resultant force will be zero
- 11What is Newtons second law of motion?Resultant force = mass x acceleration
- 12What is inertial mass?A measure of how difficult it is to change the velocity of an object
- 13What is Newtons third law of motion?Every reaction has an equal or opposite reaction
- 14How do you work out weight?Mass x gravitational field strength
- 15How do you work out force?Change in momentum/ time taken
- 16How do you work out momentum?Mass x velocity
- 17Work done is the same as...Kinetic energy
- 18How do you work out kinetic energy?0.5 x mass x (velocity)squared
- 19How do you work out stopping distance?Thinking distance + breaking distance
- 20What happens when a car breaks?There is work done by the friction between the wheels and the breaks which reduces the kinetic energy of the vehicle
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- GCSE Physics Karteikarten am Physics Topic 1- Motion and Forces, erstellt von Ellie James am 24/03/2018.
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- Ellie James
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