Energy Transformations

Front

A skier increases speed while skiing down a hill during a race. Which statements accurately describe the potential and kinetic energy of the skier?

Back

Kinetic energy increases. Potential energy decreases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Front

Energy transformation in a rubber band-powered boat when it sails.

Back

Potential energy stored in the rubber band is transformed into kinetic energy used by the paddles.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

A lamp is plugged into a wall outlet. Which sentence explains what happens to the electric energy as the light shines?

Back

The electric energy changes into light and heat energy and is not destroyed.

Front

A rock falls off a cliff that is 100m above the ocean. If no air resistance is present, during the fall there will be a decrease in the rock's -

• gravitational potential energy
• total mechanical energy
• kinetic energy
• momentum

Back

gravitational potential energy

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Front

Which answer choice correctly describes the roller coaster's kinetic and potential energy? Options:

The coaster has more potential energy at point 3 than at point 4.

,

The coaster has more kinetic energy at point 3 than point 2.

,

The potential and kinetic energy of the coaster are equal at point 4.

,

The potential and kinetic energy of the coaster are the greatest at point 1.

Back

The coaster has more kinetic energy at point 3 than point 2.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Front

A pendulum is given potential energy by being pulled up to location W. At which location does the pendulum have maximum kinetic energy? Options: Location W, Location X, Location Y, Location Z

Back

Location X

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Front

The diagram shows how a steam engine in a train works. Which description of the energy conversions in the process is correct?

Back

The chemical energy in the coal is converted to thermal energy, which is then converted to mechanical energy.

Tags

NGSS.MS-PS3-5

Front

Energy transformations when a circuit with a battery and light bulb is closed?

Back

Chemical to electrical to radiant

Front

What energy transformations occur between the microwave and the food?

Back

Electrical to electromagnetic to thermal

Front

Energy of a roller coaster as it slows down while traveling to the top.

Back

The coaster cart loses kinetic energy and gains potential energy.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5