P1.1.4 - Forces at a Distance Flashcards

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1
Q

What is weight?

A

The force that an object (or person) pushes into the Earth as a result of gravity.

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2
Q

The invisible regions around object that exert non-contact forces are called…

A

force fields

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3
Q

Why do yuo weigh less on the moon?

A

Because the moon has a smaller gravitational field strength.

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4
Q

You cannot have weight without…

A

gravity

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5
Q

What is the equation for calculating weight on any planet/moon?

A

Weight (N) = Mass (Kg) x Gravitational Field Strength (N/Kg)

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6
Q

What is mass?

A

The amount of ‘stuff’ that an object is made from.

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7
Q

Mass is measured in…

A

Kilograms (Kg)

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8
Q

What happens to the strength of a force field when you move away from it?

A

It weakens

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9
Q

Weight is measured in…

A

Newtons (N)

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10
Q

Is mass a force?

A

No

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11
Q

What are the names of the 3 types of force field?

A

Magnetic fields

Gravitational fields

Electrostatic force fields

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12
Q

Name the 3 non-contact forces.

A

Magnetism

Gravity

Electrostatic force

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