Energy Transfer and Transformation

An ice cube is placed in a glass of warm tea. Later, the ice has melted, and the tea is cooler. Which statement describes the transfer of energy?

• Energy has been transferred from the ice cube to the warm tea.

• Light energy from the warm tea has been transferred to the ice cubes.

• Energy from the warm tea has been transferred to the ice cubes and the glass.

• Electrical energy has been transferred from the tea to the surrounding air and glass.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What kind of energy transformation happens when you turn on a light switch?

• heat energy to motion energy

• electrical energy to light energy

• motion energy to sound energy

• chemical energy to light energy

Which description is an example of energy transfer in the form of heat?

• a person kicking a ball

• water flowing downhill

• ice melting in your hand

• wind blowing a windmill

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Into which type of energy does a light bulb transform electrical energy?

• heat only

• light only

• heat and light

• light and motion

Tags

NGSS.4-PS3-4

Emma and her friends are racing toy cars on a race track. Emma can hear their wheels on the track. All the cars have the same mass. Each car is racing at a constant speed. Stop watches are used to time the cars. Emma records the results of the race in a table.

Using the data in the table as evidence, Emma made the following claim: The red car traveled with the greatest kinetic energy. Is Emma’s claim supported by the evidence?

• No, because the blue car traveled for the longest time.

• No, because the green car had the fastest speed.

• Yes, because the red car traveled the farthest distance.

• Yes, because the red car had the fastest speed.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

How does a toaster use energy to make toast? Write one letter in each blank to correctly complete the paragraph. A toaster is a device that _​ (a)   _________ electrical energy to heat energy. The energy then ___​ (b)   _______ to the bread to turn it into toast! Some electrical energy also becomes _____​ (c)   _____ to let you know when the toast is ready to eat.

• transforms
• transfers
• sound energy

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Use evidence in the picture to explain the energy transfer shown.

• A. The toasted bread is evidence that electrical energy is transferred to the toaster, where electrical energy is then transformed into thermal energy.

• B. The plugged-in toaster is evidence that electrical energy is transferred to the toaster, where electrical energy is then transformed into light energy.

• C. The toasted bread is evidence that chemical energy is transferred to the toaster, where chemical energy is then transformed into thermal energy.

• D. The plugged-in toaster is evidence that chemical energy is transferred to the toaster, where chemical energy is then transformed into electrical energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Into which other kinds of energy does a light bulb transform electrical energy?

• chemical

• heat

• light

• motion

• sound

Which phrase describes evidence that energy, in the form of heat, has been transferred?

• Wind blows and a windmill turns.

• Burnt toast comes out of a toaster.

• A radio is turned on and music is heard.

• A lamp is turned on and light can be seen.

Tags

NGSS.MS-PS1-4

Tamika is shooting a bow and arrow. Write one letter in each blank to correctly complete the sentences. Some letters will not be used. When Tamika pulls back on a string to shoot the arrow, energy is being _​ (a)   _________. When she lets go of the string, potential energy will be transformed into _____​ (b)   _____ energy.

​

• electrical
• released
• stored
• motion

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5