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Physics (YEAR 7) > Physics > Flashcards

Physics Flashcards

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1
Q

What is force

A

A push or pull on an object.

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2
Q

What is a Newton

A

The unit of measurement for force

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3
Q

What is direct force?

A

A force that acts in the same direction as the motion.

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4
Q

What is an indirect force?

A

A force that acts in the opposite direction of the motion

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5
Q

What are balanced forces?

A

Forces that are equal in size and opposite in diection.

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5
Q

What are unbalanced forces?

A

Forces that are NOT equal in size and/or opposite in direction.

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5
Q

What is normal force?

A

The force exerted by a surface to support the weight of an object.

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5
Q

What is friction force?

A

The force that opposes the motion of an object.

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6
Q

What is gravity?

A

The force that attracts objects towards each other

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6
Q

What is mass

A

The amount of matter in an object

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7
Q

What is weight

A

The force of gravity acting on an objects mass

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8
Q

What are simple machines

A

Mechanical devices that make work easier

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9
Q

What are levers

A

Rigid bars that pivot around to fix point

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10
Q

What is fulcrum

A

The fixed point on which a lever pivots

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11
Q

What is a load?

A

The object being moved or lifted by a machine.

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12
Q

What is effort?

A

The force applied to a machine to do work.

13
Q

What is an inclined plane?

A

A flat, sloped surface used to raise or lower objects.

14
Q

What is a pulley?

A

A wheel with a grooved rim used to charge the direction of a force.

15
Q

What is a wedge?

A

A triangular-shaped object is used to split or separate objects.

16
Q

What is a screw?

A

An inclined plane wrapped around a cylinder.

17
Q

What is a gear?

A

A toothed wheel that meshes with another gear.

18
Q

What is a compound machine?

A

A machine made up of two or more simple machines.

19
Q

Inertia

A

The tendency of an object to resist a change in motion.

Physics (YEAR 7) (3 decks)

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