Y7 Forces Flashcards

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1
Q

Every force is a …

A

Push or Pull

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2
Q

Affects of Forces

A

Start moving ,move faster ,move slower,stop moving, change direction and change shape.

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3
Q

Thrust

A

When an object is moving towards a direction.

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4
Q

Friction

A

A force between two surfaces that are in contact.

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5
Q

Gravity

A

It pulls us towards the ground.

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6
Q

A) Forces work alone

B) They come in twos reaction and action forces

A

B) e.g. thrust and drag.

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7
Q

Air resistance

A

It is the force that stops us from falling all the way down.

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8
Q

Up thrust

A

It keeps us afloat in the water.

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9
Q

Water resistance

A

It is the force that makes it hard for us to swim.

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10
Q

Drag

A

It is the force that pulls us back while we are moving.

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11
Q

Lift

A

It is the force that keeps objects in the air e.g. Air balloons.

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12
Q

Weight

A

It is the force that pulls us down.

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13
Q

Unbalanced forces

A

When one force is stronger than it’s reaction forces. This is how objects move otherwise they would still.

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14
Q

Balanced forces

A

When two forces are action against each other in equal size.

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15
Q

What would happen without forces?

A

We would be floating around and not be able to touch anything.

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