Forces and Speed

Miss Knippa pulling on a rope during a game of tug-of-war and winning against everyone in her class.

• Balanced Force

• Unbalanced Force

Tags

NGSS.MS-PS2-2

The moon orbiting the Earth at a constant speed.

• Balanced Force

• Unbalanced Force

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What is the net force?

• 30 N left

• 25 N right

• 5 N left

• 55 N right

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NGSS.MS-PS2-2

The speed and direction an object has is described as...

• fast

• velocity

• deceleration

• rolling down a hill

A decrease in speed can be caused by what?

• Friction

• gravity

• grass on the lawn

• all of the above

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When is swinging pendulum moving the fastest?

• the top of the swing

• the midway point between top and bottom

• the bottom of the swing

• it is always moving fast

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NGSS.MS-PS3-1

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If you have constant speed and a constant direction there is ...

• no accleration

• a minimal amount of accleration

• always acceleration

• wind in your hair

Calculate the speed of Motts running down the hall at the end of the day on a Friday afternoon if he is moving 25 meters in 5 seconds.

• 5 meters per second

• 125 meters per second

• 15 meters per second

• 25 meters per second

Esme received a remote controlled car as a gift from her parents. How can she figure out how fast the car will go with new batteries?

• look at the speedometer

• check the internet

• take the distance it traveled in a certain period of time and divide it by the time it took to get there

• take speed 2 and subtract speed 1 and divide it by the time.

Tags

NGSS.MS-PS3-1

Calvin is swinging a ball around his head that is attached to a string at a steady speed. Is the ball accelerating?

• Yes

• No

• depends on how long it spins for

• off and on