Physics P2 2.3 Force and acceleration.

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The bigger the resultant force on an object......?
The greater its acceleration.
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The greater the mass of an object......?
The smaller its acceleration for a given force.
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What does a resultant force always cause?
An acceleration.
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What is a deceleration?
A negative acceleration.
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What is the resultant force if there is no acceleration in a particular situation?
Zero.
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What is acceleration?
A change in velocity.
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How can an object accelerate even if it is going at a constant speed?
By changing its direction.
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What is needed to make an object change direction?
A resultant force.
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What equation can we use to find the resultant force on an object?
F = m x a.
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In the equation to find the resultant force on an object, what is F?
The resultant force in newtons (N).
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In the equation to find the resultant force on an object, what is m?
The mass in kilograms (kg).
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In the equation to find the resultant force on an object, what is a?
The acceleration in m/s^2 (look up).
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What happens to the acceleration of an object as the resultant force on it decreases?
Acceleration decreases.
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What is the resultant force on a car of mass 1000kg if its acceleration is 2 m/s^2?
2000 N.
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**LOK UP VELOCITY-TIME GRAPH FOR DIFFERENT COMBINATIONS OF FORCE AND MASS**
**
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Other cards in this set

Card 2

Front

The greater the mass of an object......?

Back

The smaller its acceleration for a given force.

Card 3

Front

What does a resultant force always cause?

Back

Preview of the front of card 3

Card 4

Front

What is a deceleration?

Back

Preview of the front of card 4

Card 5

Front

What is the resultant force if there is no acceleration in a particular situation?

Back

Preview of the front of card 5
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