9Ie – More machines key words Flashcards

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1
Q

machine

A

A device, such as a lever or ramp, that makes it easier to move something by multiplying a force or a distance.

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2
Q

A device, such as a lever or ramp, that makes it easier to move something by multiplying a force or a distance.

A

machine

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3
Q

ramp

A

A sloping surface. A ramp is a force multiplier: it needs less force to pull something up a ramp than it does to lift it directly.

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4
Q

A sloping surface. A ramp is a force multiplier: it needs less force to pull something up a ramp than it does to lift it directly.

A

ramp

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5
Q

pulley

A

A simple machine consisting of a wheel that can turn on an axis with a rope running around it. Using more than one pulley with a rope allows a force to be multiplied.

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6
Q

A simple machine consisting of a wheel that can turn on an axis with a rope running around it. Using more than one pulley with a rope allows a force to be multiplied.

A

pulley

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7
Q

work

A

The energy transferred when a force moves an object. It is calculated using the size of the force and the distance moved by the force. The unit for work is the joule (J).

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8
Q

The energy transferred when a force moves an object. It is calculated using the size of the force and the distance moved by the force. The unit for work is the joule (J).

A

work

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