KINETIC ENERGY
What is Kinetic Energy?
The Energy due to motion.
What is Potential Energy
Stored Energy.
What is Energy?
The ability to cause change.
What is Chemical Potential Energy?
Energy stored in bonds between atoms.
What is Elastic Potential Energy?
Stored Energy due to Deformation.
What two thing are used to measure Kinetic Energy?
Mass and Velocity
What two things are used to measure Potential Energy?
Mass and Height
Can Energy be destroyed?
No, Energy can NEVER be destroyed!
TRUE OR FALSE? Before you eat lunch your Chemical Potential Energy is very high compared to after you eat lunch.
False! You are full of Energy AFTER you eat.
A stretched rubber band vs a normal rubber band. Which one has the greatest Elastic Potential Energy?
The stretched rubber band.
TRUE OR FALSE? When a roller coaster cart is released from the top of a roller coaster, Potential Energy is stored as the cart rolls down the hill.
FALSE! The cart begins to use Kinetic Energy as it is in motion.
True or False? A book resting on a shelf is an example of Kinetic Energy since there is NO motion.
False. There is no motion, so it is Potential Energy.
True or False? Waves in the Ocean do not require energy to move.
False. Waves in the Ocean are an example of Kinetic Energy.
TRUE OR FALSE? A charged battery has high chemical potential energy.
TRUE
When does a bow have the most elastic potential energy?
A) When the arrow is flying through the air
B) When the bowstring is fully pulled back
C) When the bow is lying on the ground
D) After the arrow hits the target
B) When the bowstring is fully pulled back
A truck and a car are driving on the highway at 70 miles per hour. The truck weighs 2,000 pounds and the car weighs 1,000 pounds. Which vehicle has the greatest Kinetic Energy?
The truck has the greatest kinetic energy because it weighs more.
A skydiver jumping out of a plane is an example of Potential Energy being released as?
Kinetic Energy
What happens to energy when it changes from one form to another?
A) Some of it disappears completely.
B) It is destroyed and created again.
C) It is transformed but never lost.
D) It stays only as potential energy.
C) It is transformed but never lost.
Which of the following objects stores chemical potential energy?
A) A stretched rubber band
B) A battery
C) A moving car
D) A rolling ball
B) A battery.
MYSTERY
FREE POINTS!
Mystery?
Sorry, your team loses a turn!
A truck and a car are sitting on a hill at a red light. The car is 4000 pounds and the truck is 2000 pounds. Which vehicle has the greatest potential energy?
The car has the greatest Potential Energy since the car has a greater mass.
A light bulb is connected to a battery. When the light bulb goes out, does that mean the Energy is destroyed?
No! Energy is leaving the system in the form of light.
How can a vehicle have a high chemical potential energy?
Adding Gas or fuel.
A spring toy is squeezed tightly and then released.
What happens to the elastic potential energy stored in the spring when it is released?
A) It disappears completely.
B) It changes into kinetic energy as the spring moves.
C) It increases as the spring expands.
D) It turns into chemical energy inside the spring.
B) It changes into kinetic energy as the spring moves.