Science Ch. 7

__________ describes how loud or soft a sound is.

• pitch

• volume

• vibration

• sound

The force that pulls one magnet toward another magnet is ______________________________.

• friction

• magnetic field

• gravity

• magnetic attraction

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________ is how high or low a sound is.

• volume

• sound

• pitch

• vibration

Objects that vibrate with a lot of energy produce sound with a _________ ___________.

• high pitch

• low pitch

• high volume

• low volume

Tags

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Sound travels fastest through

• space

• gases

• solids

• liquids

An example of a change of motion caused by a contact force is

• gravity pulling you toward Earth

• two magnets pushing each other apart

• a book falling from your desk

• hitting a baseball with a bat

Tags

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When one team in tug of war pulls harder on the rope than the other team does, the forces are

• active

• balanced

• unbalanced

• magnetic

Tags

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What is the force that pulls objects towards Earth?

• friction

• gravity

• magnetism

• contact force

Tags

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Objects with magnetic force are called

• insulators

• magnets

• sounds

• weights

Tags

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Magnetic force is the strongest at a magnet's

• center

• magnetic field

• poles

• pitch

Tags

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