Energy

Energy

So in this lesson we will learn how are mechanical, kinetic, and potential energy related?

Multiple Choice

At what point does Potential Energy transform into Kinetic Energy?

• Point A

• Point B

• Point C

• Point D

Multiple Choice

Which of these is an example of kinetic energy?

• a bicycle

• a battery

• a solar panel

• firewood

Multiple Select

Which of these things is an example of potential energy?

• a car motor

• firewood

• battery

• a fan

Multiple Choice

What is kinetic energy?

• moving energy

• potential energy

• stored energy

• renewable energy

Multiple Choice

What is potential energy?

• moving energy

• stored energy

• renewable energy

• non renewable energy

Multiple Choice

What is energy?

• moving energy

• stored energy

• renewable energy

• The ability to do work.

Multiple Choice

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

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

Multiple Choice

At which point does the ball has the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

• G

Multiple Choice

What do you call the temperature at which a substance changes from a liquid to a solid?

• Melting Point
• Boiling Point
• Freezing Point
• Solid Point

Multiple Choice

A student opens the top window and the bottom window in a hot room. What statement best describes the heat transfer occurring in the room?

• conduction
• radiation
• convection
• evaporation

Multiple Choice

The diagram to the right shows a solid iron bar that is being heated in a flame. The primary method of heat transfer in the solid iron bar is—

• convection
• conduction
• absorption
• radiation

Multiple Choice

A barefoot student steps on a hot concrete surface. Most of the heat transferred to the student’s skin by this contact is by the process of—

• convection
• conduction
• vaporization
• radiation

Multiple Choice

Which of these is not a source of chemical energy?

• Spaghetti

• The Sun

• Battery

• Petrol

Multiple Choice

Which of the following is an example of chemical energy being changed into kinetic energy?

• Digested food giving you energy to jump.

• A battery giving a flashlight energy to light up.

• A hand hitting a drum making music.

• Two liquids mixed together and get hot.

Multiple Choice

A battery transforms:

• Chemical energy into electrical energy

• Chemical energy into kinetic energy

• Electrical energy into chemical energy

• Electrical energy into kinetic energy

Multiple Choice

Which of the following is NOT an example of chemical energy?

• A glow stick

• A battery

• A rock about to fall off a cliff

• A burning match

Multiple Choice

For a circuit to work, it must be...

• open

• incomplete

• closed

• have a switch

Multiple Choice

What flows in circuits?

• neutrons

• atoms

• electrons

• energy

Multiple Choice

Transfer of energy in electrical circuits

• thermal energy

• electrical energy

• solar energy

• mechanical energy

Multiple Choice

energy is transferred through electromagnetic waves.

• Nuclear

• Radiant

• Thermal

• Potential

Multiple Choice

1. Sources of radiant energy include .

• Running, a potato, and gasoline

• A microwave, fire, and water vapor

• People, coal, and a blender

• Stars, the Sun, and a lamp

Multiple Choice

1. Solar panels change energy from .

• Chemical to thermal

• Potential to mechanical

• Radiant to electrical

• Kinetic to chemical

Multiple Choice

2. WHICH OF THE FOLLOWING IS A SOURCE OF LIGHT?

• the moon

• our eyes

• fire

• a mirror

Multiple Choice

When you shine sunlight through a magnifying glass onto a piece of paper, you can sometimes set the paper on fire. Why does this happen?

• The glass of the magnifier heats up.

• The energy of the Sun is focused in one small place.

• The energy of the Sun is spread out over the whole piece of paper.

• Sunlight sets everything on fire if it sits still long enough.

Multiple Choice

All of the following are problems of nuclear energy except ---

• storage of radioactive fuel
• air pollution
• security concerns
• natural disasters (tsunamis, earthquakes, etc.)

Multiple Choice

Splitting a uranium atom is called - 

• fission
• fusion

Multiple Choice

Where does fusion occur naturally?

• Underwater
• All around us
• In the radioactive waste
• On the sun

Multiple Choice

Takes two small nuclei and combines them into a larger nucleus

• fission
• fusion

Multiple Choice

How do nuclear power-plants work?

• Fusion
• Half-life
• Fission
• Fusion or fission