Energy Conservation

Which type of energy increases when you compress a spring?

• elastic potential energy
• kinetic energy
• radiant energy
• sound energy

Energy stored because of gravity is called:

• Gravitational Potential Energy

• Kinetic Energy

• Mechanical Advantage

• Chemical Energy

Tags

NGSS.MS-PS3-2

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

Kinetic energy is...

• energy carried in ultraviolet waves

• energy stored in food

• energy in motion

• energy from splitting an atom

Tags

NGSS.HS-PS2-1

NGSS.HS-PS3-2

The mathematical formula to find the amount of kinetic energy is....

• $mass\ x\ speed^2\ x\ \frac{\text{1}}{\text{2}}$

• $mass\ x\ speed\ \div\ 2$

• $2\ x\ mass\ x\ speed^2$

• $2\ x\ mass\ x\ speed$

Kinetic energy is measured in

• Newtons (N)

• Joules (J)

• Kilograms (kg)

• miles per hour (mph)

What is the unit used to measure work?

• Joule
• Watt
• Newton
• Pascal

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed

If W=Fd
Then how much work is done if it takes 20N to move a box 10 meters

• 0
• 2
• 20
• 200

When work is done, there is always a(n) _______.

• constant rate
• single movement involved
• transfer of energy
• increase in the mechanical advantage

Tags

NGSS.HS-PS3-4