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GCSE’s > Physics > Flashcards

Physics Flashcards

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1
Q

What is a scalar quantity?

A

A quantity that only has a magnitude
- Temperature, mass, distance, speed

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2
Q

What is a vector quantity?

A

A quantity that has both magnitude and direction.
- Acceleration, displacement, velocity.

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3
Q

What is a force?

A

A push or pull acting on an object due to an interaction with another object

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4
Q

What are two categories that forces can be split into?

A

Contact forces - friction, air resistance
Non-contact forces - Electrostatic, magnetic

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5
Q

What is the gravitational field strength?

A

9.8N/kg

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6
Q

What is meant by the centre of mass?

A

The single point where an objects wight can be considered to act through.

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7
Q

What is the name for the turning effect of a force?

A

The moment

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8
Q

If an object is said to be in equilibrium what can be said about the moments acting on the object?

A

The clockwise moments are equal to the anticlockwise moments.

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GCSE’s (8 decks)

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