Yr9 Physics-Energy Flashcards

Revise energy topic

1
Q

What is the equation for kinetic energy?

A

Ek = 0.5 x m x v squared

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the equation for Gravitational Potential Energy?

A

Ep = m x g x h

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the equations for power?

A
P = E / T
P = W / T
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the equation for elastic potential energy?

A

Ee = 0.5 x k x e squared

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the equation for force in springs?

A

F = k x e`

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the equation for weight?

A

W = m x g

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the equation for efficiency?

A

Efficiency = useful energy output / total energy output

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the equation for work done?

A

W = F x s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What two quantities does a vector have?

A

Direction and magnitude

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the unit for specific heat capacity?

A
Joules per (kilogram x degrees Celsius) 
J/(kg * degrees c)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the unit for spring constant?

A

Newtons per meter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the unit for extension?

A

Meters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the unit for temperature?

A

Degrees Celsius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the unit for energy?

A

Joules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the unit for force?

A

Newtons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the unit for distance?

A

Meters

17
Q

What is the unit for mass?

A

Kilograms

18
Q

What is the unit for work done?

A

Joules

19
Q

What is the unit for velocity or speed?

A

Meters per second

M/S

20
Q

What is the unit for power?

A

Watts

21
Q

What is the unit for time?

A

Seconds

22
Q

What are the three fossil fuels?

A

Natural Gas
Coal
Oil

23
Q

Name 5 renewable sources of energy

A
Solar power
Tidal power
Wave power
Wind power
Geothermal
Biofuel
Hydroelectricity
24
Q

Name 4 non-renewable sources of energy

A

Coal
Oil
Natural Gas
Nuclear