Potential & Kinetic Energy
What is potential energy?
A. energy in motion
B energy at rest
Energy can neither be...
created or destroyed
How many ways does heat transfer?
3 ways and list those three ways
What is the formula of speed?
Distance/time
How many days in a year?
365
What would be an example of kinetic energy?
A. a book on a desk
B. a boulder rolling down a mountain
C. a diver at the edge of a diving board
D. a car parked
Which of the following occurs during an energy transformation?
A. energy disappears
B. new energy appears
C. energy changes form
D. matter is created from energy
Which of these actions, on their own, will cause ice to change to water?
A. removing heat from the ice
B. adding sand to the ice
C. crushing the ice
D. adding heat to the ice
If a person walks 2 km in 30 mins. What is his average speed? 30 mins = .5 hours
4 km/hr
What is Mrs. Babcocks baby's gender?
Boy (:
Potential energy is...
energy at rest but has potential to move
or is it energy in motion.
A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?
A. Chemical > light > electrical
B. Mechanical> Sound > light
C. Thermal> solar > electrical
D. Electrical> Thermal> light
When sitting around a campfire, you can feel the heat of the fire on your face and hands. How does most of the heat move from the fire to you?
A. Conduction
B. vibration
C. convection
D. Radiation
What is the average speed of a person that walks 12.0 miles in 4.0 hrs?
3 mi/hr
What's Mrs. Babcock's first name?
Kourtney
A ball falling would have more potential or kinetic energy?
kinetic
A. Thermal to mechanical
B. Light to electrical
C. Thermal to chemical
D. Chemical to electrical
When you are walking on the beach, you feel the hot sand on your feet? What heat transfer has occurred?
A. Convection
B. Conduction
C. Radiation
Calculate the average speed if a golf cart runs 140 meters in 10 seconds?
14 m/s
What is Mrs. Babcocks favorite color?
Red
List the following scenarios as potential or kinetic energy?
girl swimming laps= PE or KE
Boy on a diving board=PE or KE
Girl hitting volleyball=PE or KE
Boy holding Volleyball=PE or KE
A dryer that dries your clothes has what energy transformations?
A. Electrical energy to heat and mechanical energy
B. Mechanical energy to heat and electrical energy
C. electrical energy to heat and light
D. Mechanical energy to heat and vaporization
List the three ways heat transfers and give the definition.
Conduction- heat transfer through touch
Convection- heat transfer through liquids and gases
Radiation- heat transfer through open space.
A bus travels 20 km in 30 minutes. What is the average speed of the bus?
40 km/h
What is Mrs. Babcock's Daughter's name?
Parker