Science Interim

An inclined plane is a simple machine that is a slanted surface, such as a ramp. An inclined plane makes it easier to raise a box to the top of the ramp rather than lifting it straight up. It may make moving the box easier, but the box also has to cover more __________________.

• distance

• force

• money

• time

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The method of heat transfer by which the sun energy reaches the earth is

• conduction

• convection

• solaration

• radiation

Which is an example of electrical energy being converted or changed into light energy?

• a glowstick on Halloween

• a solar panel

• a light bulb

• the sun

Joe can pitch a baseball a distance of 48 meters in 1.5 seconds. How fast is his pitch?

• 3.1 m/s

• 32 m/s

• 48 m/s

• 72 m/s

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This is a picture of some things we eat everyday. All of these foods are examples of what kind of energy?

• carbohydrate energy

• stored kinetic energy

• potential elastic energy

• potential chemical energy

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Identify which best describes the energy used to pluck guitar strings to make sound.

• electricity

• electromagnetic

• heat

• mechanical

The light bulb converts electrical energy into light and _________.

• chemical

• electromagnetic

• heat

• nuclear

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A book is resting on a table. The book has

• kinetic energy only.

• potential energy only.

• both kinetic and potential energy.

• neither kinetic or potential energy.

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Carol and Juan were playing with Carol's new train set. They pushed the trains around the track. They tried four different sections of track. The train had the slowest speed on which section of track?

• Track 1

• Track 2

• Track 3

• Track 4

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A man is pushing a heavy crate up an inclined plane (ramp) into the back of semi trailer. What can the man do to make it easier to get the crate up the ramp?

• Use gloves.

• Make the ramp longer.

• Make the ramp shorter.

• Pull it instead of push it.

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