Forces: Guided Reading

A _______________ is simply a push or pull.

• force

• mass

• energy

• velocity

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Forces are vectors, meaning that they have both ____________________ and ____________________.

• magnitude and time

• magnitude and direction

• speed and energy

• time and space

• direction and energy

The unit that measures force is the ____________________.

• newton

• joule

• watt

• pascal

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A force can act on an object without causing a change in motion. (**Give an example**)

• A book resting on a table

• A car accelerating on a highway

• A ball rolling down a hill

• A person walking on a treadmill

Forces can be ____________ forces, as when one object touches or bumps into another.

• friction

• gravity

• pulls

• pushes

• contact

Forces can also _______ at a ____________________. (**Give 2 examples**)

• act at a distance

• be measured

• be seen

• be ignored

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Forces can be used to _______________ _______________ from one object to another.

• transfer energy

• transfer mass

• transfer heat

• transfer light

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When a force slows an object’s motion it is called__________________.

• friction

• gravity

• inertia

• momentum

The _______________ _______________ is the combination of all the forces acting on an object.

• net force

• gravitational force

• frictional force

• magnetic force

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NGSS.MS-PS2-2

When forces act in the _______________ direction they are _______________ together to determine the net force.

• same, added

• opposite, subtracted

• perpendicular, multiplied

• random, divided

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