Foss Gravity and Kinetic Energy

What two factors affect an object's kinetic energy?

• area and volume

• mass and weight

• weight and height

• mass and speed

Tags

NGSS.MS-PS3-1

Where would this tossed baseball have the greatest amount of kinetic energy? (Hint: where is it moving the fastest?)

• point W

• point X

• point y

• point z

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Increasing an object's speed will increase its kinetic energy.

• false

• true

Tags

NGSS.MS-PS3-1

The faster an object moves, the ________ kinetic energy it has.

• more

• less

• none of the above

• all of the above

Tags

NGSS.MS-PS3-1

Suppose all of these objects were moving at 12 m.p.h. Which of these would have the greatest kinetic energy?

• A car moving

• A person running

• A ball rolling

Answer explanation

The mass of the car is greater than the mass of any of the other objects.

Tags

NGSS.MS-PS3-1

Which one of these has kinetic energy?

• a car parked on a steep hill

• a tennis ball rolling across the court

• a picture hanging on the wall

• a piece of coal before it's burned

Answer explanation

Kinetic energy is energy of MOVING objects

Tags

NGSS.MS-PS3-1

Look at this graph showing kinetic energy and speed of a moving object. Which of the following can be concluded from the graph?

• Kinetic energy only changes when speed changes

• Speed is only related to the size of an object.

• All moving objects have the same kinetic energy.

• Kinetic energy increases as speed increases

Tags

NGSS.MS-PS3-1

As the velocity of an object increases, its KE will...

• increase

• decrease

• stay the same

Tags

NGSS.MS-PS3-1

Which of these are examples of kinetic energy? Choose all three correct answers.

• running

• sleeping

• walking

• bike riding

Answer explanation

Kinetic energy is energy of MOTION.

Tags

NGSS.MS-PS3-1

What is the relationship between gravity and kinetic energy when an object falls?

• Gravity increases kinetic energy as the object falls.

• Gravity decreases kinetic energy as the object falls.

• Gravity has no effect on kinetic energy.

• Gravity converts kinetic energy to potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5