Energy in Motion

Look at the picture. How is energy transformed when the drummer’s hand hits the

drum?

• Kinetic energy is transformed into potential energy.

• Kinetic energy is transformed into sound energy.

• Sound energy is transformed into potential energy.

• Potential energy is transformed into sound energy.

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.

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

Circle the words to complete the sentence about Emma’s observations.

During the race, some of the cars’ (electrical / kinetic / chemical) energy is transformed into (chemical energy / sound energy / electrical energy).

• electrical is transformed into chemical energy

• kinetic is transformed into sound energy

• chemical is transformed into electrical energy

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

• The toasted bread is evidence that electrical energy is

  transferred to the toaster, where electrical energy is then

  transformed into thermal energy.

• The plugged-in toaster is evidence that electrical energy is

  transferred to the toaster, where electrical energy is then

  transformed into light energy.

• The toasted bread is evidence that chemical energy is

  transferred to the toaster, where chemical energy is then

  transformed into thermal energy.

• The plugged-in toaster is evidence that chemical energy is

  transferred to the toaster, where chemical energy is then

  transformed into electrical energy.

Circle the word to complete the sentence.

The food the boy eats transforms into (motion / speed /energy) for doing work.

• motion

• speed

• energy

Order the type of energy that occurs from the guitar player’s hand to the amplifier to a listener’s ear. Write the first type of energy on the left and the last type of energy on the right.

Use the word bank to answer the question.

electric energy • sound energy • kinetic energy

• kinetic energy, electric energy, sound energy

• electric energy, sound energy, kinetic energy

• kinetic energy, sound energy, electric energy

Look at the picture.

Which two types of energy are being produced?

• thermal

• sound

• light

• wave

Jackson is using these tools to investigate energy transfer.

Which of Jackson's observations provides evidence that energy can be transferred from place to place by heat?

• The water temperature was 21°C at the beginning of the

  investigation.

• The hot plate was set at medium heat.

• The air temperature of the room was 21°C at the beginning of

  the investigation.

• The temperature of the water on the hot plate increased over

  time.

Circle the words to complete the sentence

The temperature change of the water provides evidence for (sound / wave / light /kinetic) energy transfer (from / to) the water particles.

• (sound) energy transfer (from) the water particles.

• (kinetic) energy transfer (to) the water particles.

• (light) energy transfer (from) the water particles.

• (wave) energy transfer (to) the water particles.

Jackson made an observation every 3 minutes for 12 minutes. He recorded his observations in a table.

Which is most likely the missing measurement from the table?

• 21°C

• 35°C

• 40°C

• 58°C