physics

Question 1

what is meant by the term energy?

Answer 1

the ability to do work or cause a change

Question 2

what is the unit for energy

Answer 2

joules (J)

Question 3

what are the 2 main types of energy?

Answer 3

kinetic and potential energy

Question 4

kinetic energy

Answer 4

energy due to motion ex walking, waving, bike riding, train moving, ball rolling

Question 5

potential energy

Answer 5

energy that is stored in an object ex stretched elastic band, a book on a high shelf

Question 6

nuclear energy

Answer 6

sun and stars, atomic bomb

Question 7

sound energy

Answer 7

speakers, vocal cords, instruments

Question 8

light energy

Answer 8

sun, candles, light bulbs

Question 9

electrical energy

Answer 9

lightning

Question 10

heat energy

Answer 10

fire

Question 11

chemical potential energy

Answer 11

battery, coal

Question 12

elastic potential energy

Answer 12

stretched or squashed object eg spring, elastic band

Question 13

gravitational potential energy

Answer 13

rollercoaster

Question 14

kinetic energy

Answer 14

feather falling, runner, train moving, ball moving

Question 15

what are the 3 different forms of potential energy?

Answer 15

chemical, elastic and gravitational

Question 16

what is meant by the term work?

Answer 16

the energy used in carrying out the task