Forms of Energy: SC.5.P.10.2

Front

While playing at the park, Erica and her sister take turns going down the slide and playing on the swings.
Which of the following is an example of change that is caused by applying energy?

Back

When Erica pushes her sister, her sister slides down the slide

Front

Why did the stick move in the river and the leaf stay still in the pail if it was all the same water?

Back

The water in the river has enough energy to move the stick since it is flowing downhill.

Front

Why is it necessary to hold the water back with a dam in order to produce electricity?

Back

It increases the force with which the water flows.

Front

If Maria wants to have the best chance of blowing out all of the birthday candles on her birthday cake, she should bend down close to the candles, take a deep breath, make a small opening with her lips and then push her breath out.
Why does doing it this way work the best?

Back

It makes the air come out with enough force to blow out the candle flames

Front

Todd can throw a baseball from the outfield all the way back to home plate.
Why does he have to move his arm in order to make the ball fly all that way?

Back

He has to transfer some of his muscle's energy to the ball to make it move.

Front

It is possible to power a small light bulb using a simple battery. Which of the following explains what is happening in the picture?

Back

Electrical energy from the battery is changed to light and heat energy

Front

Which of the following describes one of the steps involved in using energy to dry Jennifer's hair?
Options: Thermal energy is changed into mechanical energy, which makes the motor in the hair dryer move., Electrical energy is changed into heat energy, which makes the motor in the hair dryer move., Mechanical energy is changed into heat energy, which makes the motor in the hair dryer move., Electrical energy is changed into mechanical energy, which makes the motor in the hair dryer move.

Back

Electrical energy is changed into mechanical energy, which makes the motor in the hair dryer move.

Front

Why did putting her thumb over the end of the hose make a difference?

Back

The same amount of energy in the water was forced through a smaller space.

Front

What is the most likely explanation of why the papers moved when the air conditioner came on, and not before?

Back

The fan added enough energy to the air to push the papers.

Front

What else would cause Amy's rollerskates to start rolling?
Options: getting pushed by a strong gust of wind, setting the rollerskates in the Sun to warm, standing on one foot on the flat part of the road, smoothing the surfaces of the rollerskate wheels

Back

getting pushed by a strong gust of wind