Energy and Speed

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

• True

• False

Tags

NGSS.MS-PS3-1

What causes heat when rubbing your hands together?

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NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-5

How can the speed of a dropped ball be increased?

• Roll it down a hill instead to increase the amount of friction.

• Drop a larger ball to increase the amount of friction.

• Decrease the height from which it is dropped to give it more potential energy.

• Increase the height from which it is dropped to give it more potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

When a roller coaster moves down an incline due to the force of gravity, this is an example of work.

• True

• False

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The distance traveled in an amount of time is called

An example of potential energy is a roller coaster reaching its fastest speed as it reaches the bottom of a hill.

• True

• False

Tags

NGSS.MS-PS3-2

How can you determine the speed of a moving train?

• Divide the distance traveled by the time spent moving.

• Divide the time spent moving by the direction traveled.

• Multiply the distance traveled by the time spent moving.

• Multiply the kinetic energy by the distance traveled.

Tags

NGSS.MS-PS3-1

Dana is the pitcher for her community baseball team. What force causes the baseball to change direction when it is hit by the bat?

• The catcher's force on the ball with his mitt.

• The batter's force on the ball as he misses.

• The pitcher's force on the ball as he throws.

• The batter's force on the ball with the bat.

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NGSS.MS-PS2-1

The potential energy of a roller coaster is the energy of its motion.

• True

• False

Tags

NGSS.MS-PS3-2

Which is kinetic energy?

• the energy of a moving object

• energy that is increasing

• energy that is decreasing

• energy that is stored in the position, or structure, of an object

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5