Comb Sci: Energy 2

Presentation

•

Science

•

9th Grade

•

Medium

Abdul Alim Mustafa

Used 1+ times

FREE Resource

4 Slides • 16 Questions

Watch this video (1 min)

Make sure to understand:

The different forms of energy.

Multiple Choice

Which is an example of light energy?

lawn mower

blender

flash light

speaker

Multiple Choice

A computer uses what type of energy to operate?

Mechanical

Light

Electric

Sound

Multiple Choice

What is an example of sound energy?

headphones

traffic light

sun

bicycle

Multiple Choice

When you eat fruits and vegetables, chemical bonds are releasing stored energy, this is...

a. thermal energy

b. sound energy

c. electrical energy

d. chemical energy

Multiple Choice

a. Energy stored in the nucleus of an atom.

A. Sound Energy

B. Potential Energy

C. Nuclear Energy

D. Thermal energy

Multiple Choice

Heat energy is also called ______ energy.

chemical

electrical

mechanical

thermal

Watch this video (2 mins)

Make sure to understand:

What is kinetic energy?
How to calculate kinetic energy?
How does speed affect kinetic energy?
How does mass affect kinetic energy?

Multiple Choice

Energy in motion is:

Potential Energy

Heat Energy

Electric

Kinetic Energy

Multiple Choice

A girl on a motorbike passes by at a speed of 15 m/s. Her mass is 40 kg. What is her kinetic energy?

300 Joules

600 Joules

950 Joules

4500 Joules

Multiple Choice

Calculate the kinetic energy of a 2 kg rock that rolls down the hill with a velocity of 8 m/s.

64 Joules

16 Joules

128 Joules

8 Joules

Multiple Choice

Which skier has the greatest kinetic energy?

Skier A

Skier B

Skier C

Skier D

Multiple Choice

Calculate the kinetic energy of a car which has a mass of 1000 kg and is moving at the rate of 20 m/s.

200,000 Joules

20,000 Joules

10,000 Joules

40,000 Joules

Watch this video (5 mins)

Make sure to understand:

What is potential energy?
What is gravitational potential energy?
How to calculate gravitational potential energy?
How does height affect gravitational potential energy?
How does mass affect gravitational potential energy?

Multiple Choice

Which of the following is the correct equation for calculating an object's gravitational potential energy?

PE = mgh

PE = mg / h

PE = mg + h

PE = gh

Multiple Choice

Calculate the gravitational potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.

14,553 Joules

1,485 Joules

2 Joules

743 Joules

Multiple Choice

At which position does the child on the swing have the most gravitational potential energy?

Multiple Choice

You throw a ball into the air as shown in the diagram. At what point does the ball have the most gravitational potential energy?

Multiple Choice

Which would have the LEAST gravitational potential energy (GPE)?

A ball sitting on the ground

Moon viewed from the Earth

An airplane flying 30,000 feet above the ground

A rock sitting on top of Mt. Everest

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