NEWTONS LAWS Flashcards

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1
Q

What is Newton’s 2nd Law?

A

Mass and acceleration affect the amount of force on an object.

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2
Q

What is Newton’s 1st Law?

A

An object in motion will stay in same motion until acted upon by an unbalanced external force.

OR

An object at rest will stay at rest until acted upon by an unbalanced external force.

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3
Q

What is Newton’s 3rd Law?

A

Every action has an equal and opposite reaction

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4
Q

What is inertia?

A

An object’s tendency to resist a change in motion

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5
Q

Decide if this is an example of Newton’s 1, 2 or 3rd Law.

A half full shopping cart is easier to push than an entirely full shopping cart.

A

2nd Law

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6
Q

Decide if this is an example of Newton’s 1, 2 or 3rd Law.

A full balloon thrusts air out of its opening. This results in the balloon propelling backwards.

A

3rd Law

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7
Q

Decide if this is an example of Newton’s 1, 2 or 3rd Law.

A person drive without a seatbelt. The car travelling at 100km/hr and hits a pole. The car stops and the person is propelled out the windscreen.

A

1st Law

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8
Q

The more mass, the _______ acceleration…

A

Less

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9
Q

The more force, the _______ acceleration…

A

More

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10
Q

Define Force?

A

The amount of newtons acting on an object

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11
Q

Is force a scalar or vector?

A

Vector

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12
Q

Do you need to include a direction with force?

A

YES!

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13
Q

What is the units of force and weight force?

A

N for Newtons

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14
Q

What is the units for mass?

A

Kg

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15
Q

What is the units for time?

A

Seconds

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16
Q

Define mass?

A

The amount of matter in an object.