# FORCE

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Define the Newton
force that gives a mass of 1kg an acceleration of 1ms^-2
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What is the special theory of relativity?
velocity of an object will not change unless a net force acts on it // the mass of an object is affected by its velocity, only noticeable at very high velocities
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Why can the equation F=ma not be used for particles travelling at very high speeds?
as its mass will increase
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How is acceleration and force related?
directly proportional to each other - acceleration is always in the direction of the resultant force
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What is net force?
product of mass x acceleration
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## Other cards in this set

### Card 2

#### Front

What is the special theory of relativity?

#### Back

velocity of an object will not change unless a net force acts on it // the mass of an object is affected by its velocity, only noticeable at very high velocities

### Card 3

#### Front

Why can the equation F=ma not be used for particles travelling at very high speeds?

### Card 4

#### Front

How is acceleration and force related?

### Card 5

#### Front

What is net force?

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