Energy Transformations

When an alarm clock that is plugged into the wall goes off to wake you up, what energy transformation occurs?

• Electrical -> heat + sound
• Electrical -> light + sound
• Electrical -> Chemical + Light
• Chemical -> electrical -> mechanical

Tags

NGSS.MS-PS3-5

You plug your cellphone in after it loses power, after charging for a time, it turns back on and starts to ring. What energy transformation occurs?

• Electrical -> heat + sound
• Electrical -> sound + light
• Chemical -> mechanical -> light
• Mechanical-> electrical -> sound

What position on the roller coaster has the MOST potential energy?

• a
• b
• c
• d

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

What position on the roller coaster has the most KINETIC energy?

• a
• b
• c
• d

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

At which position does the ball have the most potential energy?

• when the boy prepares to throw it
• when the ball rises
• when the ball switches from rising to falling
• When the ball falls back to the boys hand

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

When Olaf begins to melt, the following energy transformation occurs.

• Chemical -> heat -> solar
• chemical -> heat -> kinetic
• light -> chemical -> heat
• potential -> sound -> heat

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In 2013, the power went out at Super Bowl XLVII, what happened to the energy?

• The electricity was destroyed and went away
• The electricity was transformed to potential energy and then back to electric energy
• The electricity was destroyed and had to be created again.

Tags

NGSS.MS-PS1-4

Which sequence of energy forms best fits a flashlight?

• Chemical energy -> electrical energy -> light energy
• electrical energy -> thermal energy
• electrical energy -> mechanical energy
• chemical energy -> electrical energy -> sound energy

Which sequence of energy forms best fits a wind turbine?

• electrical energy -> mechanical energy
• electrical energy -> thermal energy
• mechanical energy -> electrical energy
• mechanical energy -> sound energy

Tags

NGSS.MS-PS3-5

Which sequence of energy forms best fits listening to music on a smartphone when it is not plugged in?

• nuclear energy -> light energy and heat energy
• chemical energy -> thermal energy -> mechanical energy
• mechanical energy -> sound energy
• chemical energy -> electrical energy -> sound energy

Tags

NGSS.MS-PS4-1