Forces Flashcards

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1
Q

What is a Newton metre

A

A Newton metre is a device that measures force it is also known as a force metre

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2
Q

What are newtons

A

The unit of force

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3
Q

What is a contact force

A

A force that only works when two objects are in contact with each other

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4
Q

What is a non contact force

A

A force that can work at a distance

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5
Q

What is air resistance

A

A form of friction caused by particles of air acting against a moving object

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6
Q

What is upthrust

A

An upward force acting against the force of gravity

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7
Q

What is the difference between weight and mass

A

Weight is measured in newtons is given to any object affected by the force of gravity
On the moon your mass is the same but your weight will change

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8
Q

What is resultant force

A

The total amount of force acting on an object when all the forces are acting on it

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9
Q

What is the formula for working out density

E.g. something = something ÷ something

A

Density = Mass ÷ Volume

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