Unit 3 AP Physics

What is the equation for work?

• Force / (Distance x cosθ)

• Force x Distance x cosθ

• Force + (Distance x cosθ)

• Force - (Distance x cosθ)

What are the units for energy?

• Watts (W)
• Volts (V)
• Amps (A)
• Joules (J)

What is the kinetic energy equation?

• K = mv

• K = mv²

Work is a... (Select all correct answers)

• Change in some form of energy

• A force acting over a distance

• A change in some kind of force

• Energy acting over a distance

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What is the gravitational potential energy equation?

• U = mgh²

• U = mgh

• U = mgh³

• U = mg

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

What is the equation for force applied by a spring?

• F = kx

• F = 2kx

• F = -kx

• F = -2kx

What is the equation for spring potential energy?

• U = kx²

• U = mgh

• U = Fd

Energy can only be lost when ________ friction is acting.

What is mechanical energy?

• The energy of sound waves.
• The sum of potential energy and kinetic energy in an object.
• The energy stored in batteries.
• The energy produced by machines.

Tags

NGSS.HS-PS3-2

What is the Law of Conservation of Energy?

• Energy cannot be created or destroyed, only transformed.
• Energy can only be transformed into matter.
• Energy can be created and destroyed at will.
• Energy can be created from nothing.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4