5-1 - Speed and Energy

_______ includes the direction of an object.

• Velocity

• Speed

_______ is a measurement of distance traveled over time not including the direction of an object

• Speed

• Velocity

Which force will stop a moving skateboard?

• friction

• balanced forces

• inertia

• newtons

How can you determine the speed of a moving train?

• Divide the time spent moving by the direction traveled.

• Multiply the distance traveled by the time spent moving.

• Divide the distance traveled by the time spent moving.

• Multiply the kinetic energy by the distance traveled.

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Tags

NGSS.MS-PS3-1

A horse that has a positive acceleration is ______________.

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• stopping

• increasing its speed

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• standing still

• decreasing its speed

Which is evidence that a bowling ball has more energy when it is moving faster than when it is moving slower?

• The bowling ball has a larger mass when it is moving faster than when it is moving slower.

• The bowling ball will reach the pins in less time when it is moving faster than when it is moving slower.

• A bowling ball can knock over more pins than a soccer ball moving at the same speed.

• The bowling can knock over more pins when it is moving faster than when it is moving slower.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

An example of the velocity of an object is 50 miles per hour heading north.

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• true

• false

Tags

NGSS.MS-PS3-1

Any push or pull on an object represents a force acting upon that object.

• true

• false

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Gravity is a contact force.

• true

• false

Tags

NGSS.MS-PS2-5

When you rub your hands together quickly, the friction produces heat.

• true

• false

Tags

NGSS.MS-PS1-4