Unit 5 Energy

An arrow is drawn back so that 50 Joules of potential energy is stored in the stretched bow and string. When released, the arrow will have a kinetic energy of ____ Joules.

• a. 50
• b. more than 50
• c. less than 50

Tags

NGSS.HS-PS3-1

A 40 newton object is released from a height of 10 m. Just before it hits the ground, its kinetic energy, in joules is?

• a. 400
• b. 3920
• c. 2800
• d. 4000

Tags

NGSS.HS-PS3-1

Which form of energy does the flowing water possess?

• a. gravitational energy
• b. potential energy
• c. electrical energy
• d. kinetic energy

Tags

NGSS.HS-PS3-2

What is kinetic energy?

• When an object is in motion
• When an object is not in motion
• all of the above
• none of the above

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

What kind of energy is in a rock at the edge of a cliff?

• Gravitational Potential energy
• Kinetic
• Chemical Potential energy
• elastic potential energy

 What kind of energy is in gasoline in a car tank (car is not on)?

•  Gravitational Potential Energy
• Kinetic
• Elastic Potential Energy
• Chemical Potential Energy

Tags

NGSS.HS-PS1-4

What kind of energy is in flowerpot sitting on a windowsill?

• Potential
• Kinetic

Tags

NGSS.MS-PS3-2

What kind of energy is in a stretched rubber band?

• Elastic Potential Energy
• Kinetic
• Chemical Potential Energy
• Gravitational Potential Energy

Energy can not be created or destroyed, only converted from one form to another.

• true
• false

Tags

NGSS.HS-PS3-4

A cell phone battery dies.  It gets plugged into an electrical outlet to recharge. Which of the following energy transformations occur during the charging?

• mechanical to chemical
• electrical to solar
• chemical to light
• electrical to chemical

Tags

NGSS.HS-PS3-3