Phys-Presentation 4.2 Understanding Mechanical Energy

At the top of the ramp, the skateboarder has 100% of which type of energy?

• Kinetic Energy

• Potential Energy

• Thermal Energy

• Chemical Energy

Tags

NGSS.MS-PS3-2

Fill in the blank: As the skateboarder moves from the top of the ramp to the bottom, the potential energy is converted into ________.

• Chemical Energy

• Thermal Energy

• Kinetic Energy

• Nuclear Energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following is a computational model used to calculate the change in energy of a component in a system?

• Energy flow model

• Energy conservation model

• Energy transfer model

• Energy change model

Tags

NGSS.HS-PS3-1

Energy is a quantitative property of a system that depends on the motion and interactions of the components of the system. True or False?

• True

• False

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy cannot be created or destroyed, but it can be _______ between systems.

• transferred

• eliminated

• generated

• isolated

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-5

What is potential energy?

• A) Energy associated with motion

• B) Energy associated with the position of an object

• C) Energy associated with temperature

• D) Energy associated with light

Tags

NGSS.MS-PS3-2

Potential energy is the energy associated with the _______ of an object.

• A) motion

• B) position

• C) temperature

• D) color

Tags

NGSS.MS-PS3-2

What is gravitational potential energy?

• The energy an object has due to its motion.

• The energy an object has due to its position in a gravitational field.

• The energy an object has due to its temperature.

• The energy an object has due to its chemical composition.

Tags

NGSS.HS-PS2-4

Fill in the blank: Gravitational potential energy equals mass times the acceleration due to gravity times the change in ____.

• A) speed

• B) height

• C) temperature

• D) volume

Tags

NGSS.MS-PS3-2

What is the formula for elastic potential energy?

• PE_s = \frac{1}{2} k x^2

• PE_s = k x

• PE_s = \frac{1}{2} m v^2

• PE_s = m g h