Law of conservation of energy

This is the standard unit for measuring energy.

• Joules

• Newtons

• Matter

• Mass

This is a type of potential energy.

• Sound energy

• Electrical energy

• Chemical energy

• Thermal energy

Tags

NGSS.MS-PS3-2

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?

• The PE and KE increase and decrease together

• The PE decreases while the KE increases

• Impossible to know without knowing the mass

• The PE and the KE decrease and increase together.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

• The total amount of energy is conserved

• The total amount of energy is less after a reaction

• The total amount of energy is more after a reaction

• Need the mass of the object to determine if energy is conserved.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?

• The PE and KE increase and decrease together

• The PE decreases while the KE increases

• Impossible to know without knowing the mass

• The PE and the KE decrease and increase together.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-3

When a pendulum swings, at which point is potential energy at its greatest? (assume there is no friction)

• 1 and 5
• 2 and 4
• 3 
• 4 and 5

Tags

NGSS.HS-PS3-2

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Where does the pendulum have the greatest kinetic energy?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Where does the pendulum have the greatest potential energy? (pick 2)

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Where does the pendulum have the greatest kinetic energy?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS3-2