Which of the following is an example of energy transfer? (NOT transformation!)

Jumping off a plane without a parachute

How do you calculate Gravitational Potential Energy (GPE)?

Mass x Height x Gravitational Acceleration

Height/2 x Mass x Gravitational Acceleration

What energy transformation takes place as a rock rolls down a hill?

Gravitational Potential Energy to Kinetic Energy

Thermal Energy to Kinetic Energy

Rock Energy to Mechanical Energy

What energy transformation takes place when a skateboarder uses their speed to skate up a ramp

Kinetic Energy to Gravitational Potential Energy

Gravitational Potential Energy to Kinetic Energy

Rotational Energy to Mechanical Energy

In a closed system, how will the total amount of energy change over time?

It depends on what's happening in the system

Which of the following energy transformations takes place as someone skids to a stop across the ground?

Kinetic Energy to Thermal Energy

Which of the following energy transformations takes place when you plug in a fan and the blades start turning

Electrical Energy to Kinetic Energy

Rotational Energy to Wind Energy

Which of the following energy transformations takes place as someone bounces up from a trampoline

Elastic Potential Energy to Kinetic Energy

Thermal Energy to Kinetic Energy

Gravitational Potential Energy to Kinetic Energy

At the point when the roller coaster car in the image has the lowest gravitational potential energy, which of the following statements is true? (ignore friction)

It has the greatest kinetic energy

It has the same total amount of energy as it did when it started falling

It is at the lowest height above the ground

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?

The potential energy decreases while the kinetic energy increases

Both the potential energy and kinetic energy decrease

The kinetic energy decreases while the potential energy increases

Both the potential energy and kinetic energy increase

Energy Transformation

Authored by Ian LAU

Physics

8th Grade

NGSS covered

Used 75+ times

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the best example of a machine that converts electrical energy into kinetic energy and sound energy?

an electric toothbrush

a toaster

a flashlight

an iron

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What best describes the energy conversion that occurs when you turn on a hair dryer?

electric to kinetic to thermal and sound

chemical to thermal to light and sound

nuclear to electrical to thermal and sound

kinetic to light to thermal and sound

Tags

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What best describes the energy conversion that takes place in a microwave oven?

electrical to light to thermal

chemical to thermal to light

electrical to thermal to sound

nuclear to thermal to chemical

Tags

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Turning on a lamp is an example of energy transformation from electrical to 3 forms of energy. Which of these is NOT created by the lamp?

radiant

light

heat

chemical

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following energy transfers occurs when food is digested?

chemical to mechanical

radiant to nuclear

mechanical to potential

thermal to chemical

Tags

NGSS.MS-LS1-7

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In energy transformations, "wasted energy" usually takes what form?

heat

chemical energy

light

sound waves

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What kind of energy transformation takes place in this system?

chemical to electrical to light

electrical to chemical to light

electrical to light to chemical

light to chemical to electrical

Tags

NGSS.HS-PS3-3

NGSS.HS-PS1-4

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Energy Transformation

What is the best example of a machine that converts electrical energy into kinetic energy and sound energy?

What best describes the energy conversion that occurs when you turn on a hair dryer?

What best describes the energy conversion that takes place in a microwave oven?

Turning on a lamp is an example of energy transformation from electrical to 3 forms of energy. Which of these is NOT created by the lamp?

Which of the following energy transfers occurs when food is digested?

In energy transformations, "wasted energy" usually takes what form?

What kind of energy transformation takes place in this system?

Which is an example of radiant energy to thermal energy transformation?

During most energy transformations and transfers, wasted energy takes the form of __.

What is the best example of a device that converts electrical energy to thermal energy?

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