Uses of Energy, Energy Transformations and Sound

When a balloon is rubbed against a wall, electrons move from the wall to the balloon. The charges are opposite, the balloon is attracted to the wall and sticks. The balloon now has a ______________ charge.

• positive

• negative

• both

Static Electricity is _______________________________ .

• energy flow of moving electrons through a conductor.

• loud noise

• caused by build-up of electric energy on surfaces

Examples of static electricity are .....

• devices to help dust removal

• lightening strike

• an oven roasting a turkey

• getting shocked after shuffling your feet on a carpet

• air filters

Ms. Tello is watching students kick a soccer ball at recess. She notices that the harder the soccer ball is kicked the further the soccer ball moves. What is the reason for this phenomenon?

• Energy is destroyed then created again with each kick

• The soccer ball is creating energy

• The energy transfers from the student to the soccer ball

• Nobody knows

Tags

NGSS.MS-PS3-5

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NGSS.MS-PS3-1

When a balloon is rubbed against a wall, electrons move from the wall to the balloon. The balloon now has a negative charge, while the wall has a positive charge. Because their charges are opposite, the balloon is ______________________ .

• attracted to the wall.

• repelled from the wall.

• pops when it touches the wall.

• nobody knows.

Tags

NGSS.MS-PS2-3

Batteries are produce energy to power by ______________________ to ____________________.

• electrical energy to sound energy.

• chemical energy to electrical energy.

• mechanical energy to electric energy.

• sound energy to mechanical energy.

Lily placed a pot of cool water to cook pasta on her stove burner. She turned on the burner and the water boiled and cooked the pasta. Which is true about the transfer of energy?

• Electrical energy was created.

• Heat energy changed into electrical energy.

• Heat energy was created in the water.

• Electrical energy was transferred to heat energy.

Tags

NGSS.MS-PS3-3

_________ is a measure of how high or low a sound is.

• Sound

• Electricity

• Pitch

• Light

A whistle is _____________. A bass drum is ____________.

• high-pitched/low-pitched.

• low-pitched/high-pitched.

• nice/friendly

Sound travels in ________________.

• boats

• power soures

• soundwaves

Tags

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