Physics: Work/Energy

Which of the following is a true statement?

• Energy can be created or destroyed because it is not conserved in a system.
• Energy is the rate of doing work.
• Energy can be stored or transferred.
• The unit for energy is the Watt. 

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

What is the unit for work and energy?

• N
• m
• J
• kgm/s

How much work is done carrying a 10-N box horizontally across a floor for 8 m?

• 80 N

• 10 N

• 8 N

• 0 N

Which of the following is a true statement?

• Energy can be created or destroyed because it is not conserved in a system.
• Energy is the rate of doing work.
• Energy can be stored or transferred.
• The unit for energy is the Watt. 

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Gravitational potential energy is the...

• Energy stored in an object equal to m*g*h

• Energy due to the motion of the object, 1/2*m*v²

Energy contingent upon an objects configuration or position is known as.....

• kinetic energy

• potential energy

• nonconservative energy

• radiant energy

Tags

NGSS.MS-PS3-2

What theorem acts as a bridge between force and kinetic energy

• Kinetic Force Theorem

• Force Energy Theorem

• Work Energy Theorem

• Force Work Theorem

Which is not a formula for work

• W = Fdcos(Θ)

• W = mgh

• W = 1/2 mv²

• W = 1/2kx²

• All are ways of solving for work done

Which force(s) is/are conservative?

• friction

• drag

• air resistance

• spring force

• force of gravity

Tags

NGSS.HS-PS3-2

What is hooke's law tell us?

• Force related to a spring is directly proportional to the displacement that a spring is stretched or compressed.

• Work related to a spring is directly proportional to the velocity that a spring moves.

• Force related to a spring is directly proportional to the velocity that a spring is stretched or compressed.