1.1.2 And 1.1.3 Changes In Energy And Energy Changes In Systems

Question 1

Kinetic energy equation

Answer 1

Kinetic energy= 0.5 × mass × (speed)²

Question 2

Kinetice energy number equation

Answer 2

Ek= ½ m v²

Question 3

What does V stand for in the kinetic energy equation?

Answer 3

Velocity

Question 4

V units

Answer 4

M/s
Metres per second

Question 5

Elastic potential equation

Answer 5

Elastic potential = 0.5 × spring constant × (extension)²

Question 6

Elastic potential number equation

Answer 6

Ee= ½ m v²

Question 7

What does V mean in the elastic potential equation

Answer 7

Spring constant

Question 8

Gravitational potential energy equation

Answer 8

Gravitational potential energy= mass × gravitational field strength × height

Question 9

Gravitational field strength units

Answer 9

N/Kg
Newtons per Kg

Question 10

What does g stand for in gravitational potential energy equation?

Answer 10

Gravitational field strength

Question 11

Gravitational potential energy number equation

Answer 11

Ep = mgh

Question 12

Change in thermal energy equation

Answer 12

Mass × specific heat capacity × temperature change

Question 13

Change in thermal energy number equation

Answer 13

E = m × c × theta

Question 14

What does c stand for in change in thermal energy equation

Answer 14

Specific heat capacity

Question 15

What does theta stand for in change in thermal energy equation

Answer 15

Temperature change

Question 16

Units for temperature change

Answer 16

°C

Question 17

Heat capacity units in change in thermal energy equation

Answer 17

J/kg°C

Question 18

Distance moved units (s)

Answer 18

Metres
m

Question 19

Spring constant units

Answer 19

N/M