PSU11B Mechanical Energy with work and loss

Categorize

Options (10)

how fast

speed

velocity

force

weight

kinetic energy

potential energy

work

distance

displacement

Match the units

Joules

Newtons

m/s

meters

Dropdown

A force applied in order to move an object some distance is called

Select answer

.

Multiple Choice

Pushing on a car but it does not move.

• Work

• Not work

Multiple Choice

You and a friend push a heavy piano, causing it to move about 10 centimeters.

• Work

• Not work

Multiple Choice

You stand for half an hour in the freezing cold waiting for the bus to come.

• Work

• Not work

Drag and Drop

If 17 Newtons were necessary to move a crate 4 meters, how much work was done?

Placeholder

Drag these tiles and drop them in the correct blank above

272 N

68 Joules

68 N

272 J 

Multiple Choice

What is the KE at point D?

• 14 J

• 12 J

• 6 J

• 8 J

Revised Total Mechanical Energy:

Work and Loss

Multiple Choice

A student decides to take up diving as a hobby. He stands on a high-dive that is 4m tall. If the student has a mass of 50 kg, what is his PE? What are you solving for?

• Potential Energy

• Mass

• Gravity

• Height

Multiple Choice

A student decides to take up diving as a hobby. He stands on a high-dive that is 4m tall. If the student has a mass of 50 kg, what is his PE?

Which equation are you going to use? PE=

• = mgh

• = 1/2 (m) (v^2)

• =fd

• = KE + PE

• = m*a

Multiple Choice

A student decides to take up diving as a hobby. If the student has a mass of 50 kg - he dives off the diving board at 3 m/s. What is your Kinetic Energy? What are you solving for?

• Kinetic Energy

• Mass

• Velocity

• Height

Multiple Choice

A student decides to take up diving as a hobby. If the student has a mass of 50 kg - he dives off the diving board at 3 m/s. What is your Kinetic Energy? What equation are you going to us?

• = mgh

• = 1/2 (m) (v^2)

• = m*a

• = KE + PE

Multiple Choice

A student decides to take up diving as a hobby. If the student has a mass of 50 kg - he dives off the diving board at 3 m/s. What is your Kinetic Energy?

• 1000 J

• 225 J

• 550 J

• 1.25 J