Free Printable All about energy review

1.

What is energy?

a)

The capacity of doing work.

b)

The electricity supplied by Eskom.

c)

The calories in the food that we eat.

d)

The ability to jump up and down.

2.

What is the S.I unit of measurement of energy?

a)

kiloJoules

b)

Newtons

c)

Joules

d)

Pascals

3.

What is the formula for kinetic energy?

a)

$\frac{x}{t}$

b)

$m\cdot a$

c)

$\frac{v}{t}$

d)

$\frac{1}{2}m\cdot v^2$

e)

$m\cdot g\cdot h$

4.

What is the formula for gravitational potential energy?

a)

$\frac{x}{t}$

b)

$m\cdot a$

c)

$\frac{v}{t}$

d)

$\frac{1}{2}m\cdot v^2$

e)

$m\cdot g\cdot h$

5.

Which of the following have stored energy?

a)

Compressed spring

b)

stretched spring

c)

book on a table

d)

the first peak of a rollercoaster

e)

hot cup of coffee

6.

How much gravitational potential energy does a 100kg (220lb.) skydiver have if they jump from 4000 meters?

a)

3920000 J

b)

294 J

c)

180000 J

d)

1225 J

7.

A 6kg cat misjudges a jump and falls 5 meters. How much gravitational potential energy does the cat have? (The cat is fine by the way.)

a)

294 J

b)

180000 J

c)

1225 J

d)

3920000 J

8.

What is the kinetic energy of a 1,600kg Mustang travelling at 15 m/s (33mph)

a)

180000 J

b)

294 J

c)

1225 J

d)

3920000 J

9.

What is the kinetic energy of a 1,600kg Mustang travelling at 15 m/s (33mph)

a)

180000 J

b)

294 J

c)

1225 J

d)

3920000 J

10.

What type of energy is food energy stored in your muscles?

a)

mechanical

b)

nuclear

c)

thermal

d)

chemical

11.

The roller coaster cart has the most gravitational potential energy at position-

a)

W

b)

X

c)

Y

d)

Z

12.

The roller coaster cart has the most kinetic energy at position-

a)

W

b)

X

c)

Y

d)

Z

13.

What is the Law of Conservation of Energy?

a)

Energy can neither be created nor destroyed

b)

Matter can neither be created nor destroyed, only altered in form

c)

$E=mc^2$

d)

$PE_i+KE_i=PE_f+KE_f$

14.

What type of group activities do you like best?

a)

Whiteboarding

b)

Labs

c)

Simulations

d)

Competitive

e)

Cooperative

All about energy review

Total questions: 14

Worksheet time: 10mins

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