Flashcards

KS3 Physics

Laila Al-Refai English 16 cards

Cards in this deck (16)

1KS3 Physics Year 7Energy resources
Electrical Circuits
Forces
2What is potential energy?stored energy
3What is energy measured in?joules
4What are fossil fuels?fossil fuels are dead, rotting animals or plants found underground used for energy
5What is the difference between renewable and nonrenewable energy?Renewable energy can be reused endlessly but nonrenewable energy eventually runs out.
6Where do all forms of energy originate?The sun
7What is current?the number of electrons, measured in amps.
8What does adding more cells to the circuit do?increases the voltage and makes the bulb(s) brighter
9What are the advantages of a parallel circuit?If one cell breaks the others will still function
10What is voltage?The amount of energy the electrons carry.
11What is a fuse?a small safety tube in a circuit that slows the energy down
12Why is gravity less on the moon?because it is smaller in size
13What is friction?two surfaces rubbing against each other
14What is air resistance?the force opposite the direction an object is moving
15What are lubricants?smooth surfaces that reduce friction
16What is the resultant force?the difference between the amounts of force on opposite sides of something moving, if the forces on opposite sides are equal the resultant force is 0