physics units/defenitions

Question 1

Time (unit)

Answer 1

seconds, s

Question 2

Velocity (unit)

Answer 2

metres per second, m/s, ms^-1

Question 3

Temperature (unit)

Answer 3

degrees celsius, ‘c

Question 4

Energy (unit)

Answer 4

Joules, J

Question 5

Force (unit)

Answer 5

Newtons, N

Question 6

the length of the actual path between the inital and final position of a moving object in the given time interval is known as the _________ travelled by the object.

Answer 6

distance

Question 7

_________ is an objects change in position, only measuring from its starting position to the final position.

Answer 7

displacement

Question 8

____________ is the distance travelled per unit of time.

Answer 8

speed

Question 9

_________ is the vector quantity that indicates distance per time and direction

Answer 9

velocity

Question 10

__________ is usually said to be a physical quantity that only has magnitude and no other characteristic

Answer 10

scalar

Question 11

__________ is a quantity that has both magnitude and a direction

Answer 11

vector

Question 12

magnitude

Answer 12

distance or quantity

Question 13

energy of an object due to its motion

Answer 13

kinetic energy (Ek)

Question 14

gravitational potential energy (Egp)

Answer 14

energy of an object due to its position in a gravitational field.

Question 15

energy stored when an object is stretched or compressed

Answer 15

elastic energy (Eelast)

Question 16

chemical potential energy

Answer 16

energy stored in chemical bonds (Ech)

Question 17

energy contained in an object due to temperature

Answer 17

thermal energy (Eth)

Question 18

potential energy

Answer 18

energy stored away

Question 19

active energy

Answer 19

energy in use

Question 20

work (energy transfer)

Answer 20

when a force moves an object through a distance

Question 21

heating (Eh or Q)
energy transfer

Answer 21

when energy flows from hot to cold objects, not to be confused with thermal energy

Question 22

electricity (Eelect)
energy transfer

Answer 22

when energy is transferred by an electric current

Question 23

waves
energy transfer

Answer 23

by sound or electromagnetic radiation