4.6 Energy Quizizz

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

• 1457 Joules

• 22,584 Joules

• 15 Joules

• 45,167Joules

What would have the greatest kinetic energy?

• A car driving down a hill.
• A person running down a hill. 
• A ball rolling down a hill. 

The statement that "the energy within a system remains constant and cannot be created or destroyed, only transformed" best sums up _________.

• Something Mr. Lance likes to say.

• Life

• Law of Conservation of Energy

• The scientific method

• Newton's Third Law

Which is the best example that something has kinetic energy?

• a. a car parked on a steep hill 
• b. a tennis ball rolling across the court
• c. a picture hanging on the wall 
• d. a piece of coal before it's burned 

What is energy?

• something that picks up things, like a magnet.

• Motion of an object

• ability to do work

• magic rays of sunshine that come down when you're feeling blue.

The SI unit in which kinetic energy is measured is 

• Newton
• Kilogram
• Joules
• Metres per second

Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.

• 18 J
• 36 J
• 12 J
• 6 J

What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s

• 676 J

• 52 J

• 17J

• 338 J

The roller coaster car pictured here has

• 100% Potential Energy

  0% Kinetic Energy

• 75% Potential Energy

  25% Kinetic Energy

• 50% Potential Energy

  50% Kinetic Energy

• 0% Potential Energy

  100% Kinetic Energy