Physics

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If a mass has a gravitational force on it, then we say it is a....?
gravitational field
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What colour is spectral class K?
orange
2 of 8
What colour is the spectral class that can be at a temperature of 6500K?
white
3 of 8
A ..... is any physical quantity that has a direction and magnitude?
vector
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A .... is a pair of equal and opposite forces acting on a body, but not along the same line?
couple
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What are particles made up of quarks?
hadrons
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Baryon number is always....?
conserved
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What takes place when a proton changes into a neutron in a unstable nucleus with too many protons?
positron emission
8 of 8

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Card 2

Front

What colour is spectral class K?

Back

orange

Card 3

Front

What colour is the spectral class that can be at a temperature of 6500K?

Back

Preview of the front of card 3

Card 4

Front

A ..... is any physical quantity that has a direction and magnitude?

Back

Preview of the front of card 4

Card 5

Front

A .... is a pair of equal and opposite forces acting on a body, but not along the same line?

Back

Preview of the front of card 5
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