Physics revision 2017

Question	Answer
A force is best defined as....	A push or pull motion.
What is the definition of Energy? (It is the ability to...., Is only detected when.....)	The ability to do work. Is only detected when it causes a change to matter.
What is the best definition for Mass?	The amount of substance. Tells you how many particles you have and is measured in Kg.
What is the best definition of Weight?	The force of gravity pulling on a mass. It is a force and is measured in Newtons.
What is the best definition of Gravity?	A force of attraction between masses. It is a property of mass and is measured in Newtons.
What is the acceleration caused by Gravity on Earth? in m/s	9.8m/s^2
What is Friction best described as?	A force that acts in opposition to the movement of an object and produces heat.
What is 'Work'?	Work is the physical effects of energy and is measured in Joules.
How is work calculated?	Force X Distance
What is Velocity and how is it measured?

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	Created by Annalise Watson over 7 years ago

	Copied by Jasmine Trinh over 7 years ago