PE vs. KE-Bell Work- Feb. 25

What is potential energy?

• The amount of energy an object could have if it tried hard enough.

• Moving energy

• Stored energy

• Active energy

Tags

NGSS.MS-PS3-2

What is kinetic energy?

• Stored energy

• Moving energy

• Potential energy

• All of the above

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A(n) ________ in mass results in a(n) _________ in kinetic energy.

• Increase, increase

• Increase, decrease

• decrease, increase

Tags

NGSS.MS-PS3-1

When a ball rolls down hill, its potential energy _____________ and its kinetic energy ______________.

• increases, increases

• increases, decreases

• decreases, decreases

• decreases, increases

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

There is a roller coaster car at the top of the hill, one at the middle of the hill, and one at the bottom of the hill. Which has the most potential energy?

• The car at the bottom of the hill

• The car in the middle of the hill

• The car at the top of the hill

• All of the cars have zero potential energy

Tags

NGSS.MS-PS3-2

True or False: Kinetic Energy and Potential Energy have a direct relationship. When one goes up the other goes up.

• True

• False

An example of Kinetic Energy is:

• Stretching a rubber band

• Bike moving down a Hill

• Ball at the top of a hill

• squishing a spring

Tags

NGSS.MS-PS3-1

Gravitational potential energy depends on the ________ and ________ of the object.

• Height and mass

• Height and movement

• Mass and speed

• Height and speed

Tags

NGSS.MS-PS3-2

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

• 1457 Joules

• 22,584 Joules

• 15 Joules

• 45,167Joules

Tags

NGSS.MS-PS3-1

Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.

• 18 J
• 36 J
• 12 J
• 6 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4