The weight of an object is the force of gravity on it. The mass of an object is the quantity of matter in it.
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What can we say about the motion of a falling object acted on only be gravity?
An object acted on only by gravity accelerates at about 10 m/s.
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What is terminal velocity?
The terminal velocity of a falling object is the velocity it reaches when it is falling in a fluid. The weight is then equal to the drag force on the object.
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How do we work out the weight of an object?
Weight = mass x gravitational field strength
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What are the units of weight, mass and gravitational field strength?
Weight (N), Mass (kg), Gravitational field strength (N/kg)
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Why does an object dropped in a fluid initially accelerate?
There is a resultant force acting on it.
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What eventually happen to an object falling in a fluid?
It will reach a terminal velocity because the resultant force becomes zero.
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Other cards in this set
Card 2
Front
What can we say about the motion of a falling object acted on only be gravity?
Back
An object acted on only by gravity accelerates at about 10 m/s.
Card 3
Front
What is terminal velocity?
Back
Card 4
Front
How do we work out the weight of an object?
Back
Card 5
Front
What are the units of weight, mass and gravitational field strength?
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