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4th Grade Science > Quiz 4 (3.4-3.7) > Flashcards

Quiz 4 (3.4-3.7) Flashcards

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1
Q

True or False

A smooth surface increases friction

A

False (decreases)

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2
Q

True or False

A screw is an example of a lever.

A

False (an inclined plane)

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3
Q

True or False

The moon has more gravity than the Earth

A

False (less)

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4
Q

True or False

An upright pyramid has a very high center of gravity.

A

False (low)

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5
Q

True or False

A car uses a wheel and axle to overcome weight.

A

False (friction)

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6
Q

True or False

Polarity means having two opposite sides that work differently.

A

True

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7
Q

True or False

Grease can be used as a lubricant.

A

True

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8
Q

True or False

The Earth acts like a giant electromagnet.

A

True

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9
Q

True or False

A magnet’s force is weakest at its poles.

A

False (strongest)

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10
Q

_____ is the force of gravity on an object.

Electromagnet
Friction
Foundation
Frame
Fulcrum
Gravity
Lubricant
Pulley
Weight

A

Weight

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11
Q

The ____ is the skeleton of a building, gives its shape.

Electromagnet
Friction
Foundation
Frame
Fulcrum
Gravity
Lubricant
Pulley
Weight

A

Frame

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12
Q

_____ is there attracting force between two objects.

Electromagnet
Friction
Foundation
Frame
Fulcrum
Gravity
Lubricant
Pulley
Weight

A

Gravity

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13
Q

____ is a machine that makes lifting heavy things easier.

Electromagnet
Friction
Foundation
Frame
Fulcrum
Gravity
Lubricant
Pulley
Weight

A

Pulley

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14
Q

____ is a device that generates electricomagnetic force.

Electromagnet
Friction
Foundation
Frame
Fulcrum
Gravity
Lubricant
Pulley
Weight

A

Friction

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15
Q

___ is a substance that minimizes friction

Electromagnet
Friction
Foundation
Frame
Fulcrum
Gravity
Lubricant
Pulley
Weight

A

Lubricant

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16
Q

____ is the part of a letter which holds and balances weight

Electromagnet
Friction
Foundation
Frame
Fulcrum
Gravity
Lubricant
Pulley
Weight

A

Fulcrum

17
Q

____ is the base of a building.

Electromagnet
Friction
Foundation
Frame
Fulcrum
Gravity
Lubricant
Pulley
Weight

A

Foundation

4th Grade Science (19 decks)

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