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Grade 4 Science Quiz

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Questions and Answers

What type of energy is transformed when the drummer’s hand hits the drum?

Kinetic energy is transformed into sound energy (correct)
Potential energy is transformed into sound energy
Sound energy is transformed into potential energy
Kinetic energy is transformed into potential energy

What do Emma and her friends hear while racing toy cars on the track?

The cars' kinetic energy (correct)
The cars' sound energy
The cars' gravitational energy
The cars' potential energy

What is the mass of all the racing toy cars?

The same for each car (correct)
Increasing as the cars race
Decreasing as the cars race
Different for each car

At what speed are the toy cars racing on the track?

<p>Constant speed (A)</p> Signup and view all the answers

What is the purpose of using stopwatches during the toy car race?

<p>To measure kinetic energy (C)</p> Signup and view all the answers

Flashcards

Drum hit energy type

Kinetic energy transforms into sound energy when a hand hits a drum.

Racing toy car sound

The sound heard is related to the kinetic energy of the moving cars.

Toy car mass

All toy cars have the same mass.

Toy car race speed

The cars maintain a constant speed during a race.

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Purpose of stopwatches

Stopwatches measure the kinetic energy of the cars during a toy race by calculating related time.

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Study Notes

Energy Transformation

Mechanical energy is transformed into sound energy when the drummer's hand hits the drum.

Racing Toy Cars

Emma and her friends hear sound energy while racing toy cars on the track.

Mass and Speed of Toy Cars

The mass of all the racing toy cars is not specified.
The speed of the toy cars racing on the track is not specified.

Measuring Speed

The purpose of using stopwatches during the toy car race is to measure the speed of the toy cars.

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