Balancing Forces-Chapter 4 Test

1) What makes the floating train start to rise off of the tracks?

• Repelling magnetic force between magnets in the train and magnets in the track

• Attracting magnetic force between magnets in the train and magnets in the track

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What makes the floating train fall back down onto the tracks?

• Repelling magnetic force between magnets in the train and magnets in the track.

• Gravity, an attracting force between the Earth and the train

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Two forces can be exerted on an object at the same time.

• True

• False

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A ____________________ is when multiple forces of equal strength act on the same object.

• Pattern

• Design

• Magnetic Force

• Balanced Force

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When forces exerted on an object are balanced, the object's…

• Movement changes

• Movement does not change

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When something is not changing, Scientists say that it is _________.

• Non-stable

• Stable

• Growing

What kind of force is happening here?

• Balanced

• Magnetic

• Non-Toucing

• Unbalanced

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The table in this picture pushes up on the book while gravity pulls it down. The two forces have equal magnitude, but work in opposing directions; They are …

• Balanced

• Unbalanced

• Magnetic

• Non-Touching

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What are these two men creating?

• A balanced force which will result in the couch moving

• An unbalanced force which will result in the couch moving

• A magnetic force which will result in the couch moving

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