Big Energy Test Review

Energy Review

Multiple Choice

Which cat has more potential energy?

• neither

Multiple Choice

Which cat has more kinetic energy?

• neither

Open Ended

A 50 kg girl on her scooter is moving at a rate of 8 m/s. Calculate the kinetic energy of the girl on her scooter. KE=½mv²

Open Ended

What is the potential energy of a 2kg ball half way down the hill (2m high)?

Open Ended

If the total energy is 78.4 J at the top of the hill, what is the total energy at the bottom of the hill?

Multiple Choice

Mrs. Shehata's students are complaining that it is hot in the classroom. She plugs in the fan and turns it on. Which energy transformation occurs?

• mechanical to electrical

• electrical to mechanical

• chemical to mechanical

• electromagnetic to mechanical

Multiple Choice

Energy is the ability to do  ___________.

• Nothing

• Work

• Energy

• Change

Multiple Choice

The sun’s energy used by green plants to produce food is an example of light energy being converted to what other form of energy?

• kinetic energy
• heat energy
• mechanical energy
• chemical 

Multiple Choice

The Law of Conservation of Energy states that...

• energy can be destroyed
• energy can not be created or destroyed
• energy can only be destroyed using the force

Multiple Choice

Which skier will have a greater potential energy? 

• Skier 1
• Skier 2

Multiple Choice

What object can change electrical energy into light energy?

• A candle
• A fire
• A lamp
• A radio

Multiple Choice

Energy of motion is which type of energy?

• Potential
• Kinetic
• Sound
• Gravitational

Multiple Choice

What kind of energy is represented in this picture?

• Thermal
• Potential
• Nuclear
• Mechanical

Multiple Choice

On a roller coaster, where is maximum potential energy?

• At the bottom of a big hill

• When going around a corner

• When going upside down

• At the top of a big hill

Multiple Choice

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

Multiple Choice

On a roller coaster, where is maximum kinetic energy?

• At the bottom of a big hill

• When going around a corner

• When going upside down

• At the top of a big hill

Multiple Choice

What type of energy is in this picture?

• Kinetic
• Potential
• Chemical
• Sound

Multiple Choice

Where does the ball have the greatest potential energy?

• 1

• 2

• 3

• 4

• 5

Multiple Choice

Kinetic Energy is:

• Energy of motion

• always conserved

• Energy due to position

Multiple Choice

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

Multiple Choice

What type of energy is in this picture?

• Kinetic
• Potential
• Chemical
• Sound

Multiple Choice

Where does the ball have the greatest potential energy?

• 1

• 2

• 3

• 4

• 5

Multiple Choice

Potential energy is best described as...

• the same as electrical energy

• stored or "waiting" energy

• the energy of motion

• another name for radiant energy

Multiple Choice

The type of energy stored in the bonds between atoms

• Electrical

• Chemical

• Mechanical

• Thermal

Multiple Choice

The light that comes from the sun is ________ energy.

• electrical

• thermal

• radiant

• chemical

Multiple Choice

The SI unit for energy is the...

• Meter

• Joule

• Newton

• Milliliter

Multiple Choice

Juan has a mass of 10 kg and is running at a velocity of 4 m/s. What is his kinetic energy? (KE = 1/2 x m x v²)

• 40 J

• 80 J

• 120 J

• 20 J

Multiple Choice

An example of kinetic energy is...

• A pendulum before it is released from its highest point.

• A bowling ball rolling down a lane.

• A diver standing at the top of a diving board.

• A battery.

Multiple Choice

A car starts at the top of a big hill. The e-brake is cut and the car starts rolling down the hill. What can you say about the car's energy?

• It is gaining kinetic energy and losing potential energy.

• It is gaining potential energy and losing kinetic energy.

• It is gaining mechanical energy and losing chemical energy.

• It is gaining chemical energy and losing mechanical energy.

Multiple Choice

Which statement best describes thermal energy?

• It is the average amount of kinetic energy of particles of matter.

• It is the total amount of kinetic energy of particles of matter.

• It is the average amount of potential energy of particles of matter.

• It is the total amount of potential energy of particles of matter.

Multiple Choice

Which method of heat transfer involves hot substances rising and cool substances falling?

• Convection

• Conduction

• Radiation

• Thermal Energy

Multiple Choice

This type of thermal energy transfer can take place in solids, liquids, & gases when two objects are touching.

• conduction

• convection

• radiation

Multiple Choice

This type of thermal energy transfer can take place in gases only.

• conduction

• convection

• radiation

Multiple Choice

This type of thermal energy transfer can take place in fluids (liquids & gases). Rising of warmer fluid and sinking of cooler fluid forms a current.

• conduction

• convection

• radiation

Multiple Choice

The thermal energy transfer being shown in this image is...

• conduction

• convection

• radiation

Multiple Choice

The thermal energy transfer being shown in this image is...

• conduction

• convection

• radiation

Multiple Choice

The thermal energy transfer being shown in this image is...

• conduction

• convection

• radiation

Multiple Select

Which of the boxes shows the correct direction of heat transfer? Choose all that apply.

• A

• B

• C

• D

Multiple Choice

If you added ice (0^oC) to a glass of water (15^oC) how would the heat move between the ice & water?

• from the ice to the water

• from the water to the ice

Multiple Choice

Thermal energy ALWAYS moves from _____ to _____.

• solid to liquid
• ice to water
• hot to cold
• solid to gas

Multiple Choice

How many Joules of energy are required to change 10 gram of water from 20 ^οC to 90 ^οC?

• 1400 J
• 2800 J
• 210,000 J
• 1,400,000 J