Working on my energy
You've got potential
I've got kinetic
Distance vs Time
Need for speed
100
Defined as the ability to cause change
Energy
100
Energy that is stored
Potential energy
100
Energy that is in motion
Kinetic energy
100
The equation used to calculate average speed
average speed= d/t
100
defined as the how far something moves in a given amount of time
speed
200
This is the unit of measurement of energy
Joules
200
True of false: Potential energy can be converted into kinetic energy
True
200
True or false: Kinetic energy can be converted into potential energy
True
200
when an object is not moving at a constant speed, this is a way to calculate the speed of an object over a stretch of time
average speed
300
What are the two main types of energy?
Potential and kinetic energy
300
This type of potential energy is present when an object is at its highest point above the ground.
Gravitational potential energy
300
Kinetic Energy
300
Which of the following scenarios matches the movement of the graph.
A. Car stopped at a red light for 10 seconds
B. A car traveling at a constant speed of 65 mph for 10 seconds
C. A car slowing down as they reach a stop light
B. A car traveling at a constant speed of 65 mph for 10 seconds
300
the units of measurement for speed
meters per second
400
Mechanical energy is the sum of what two forms of energy?
Kinetic energy and potential energy
400
Potential energy
400
The amount of kinetic energy an object has depends on the objects __________ and ___________.
Mass and speed
400
Which of the following scenarios matches the movement of the graph.
A. Car stopped at a red light for 10 seconds
B. A car traveling at a constant speed of 65 mph for 10 seconds
C. A car slowing down as they reach a stop light
A. Car stopped at a red light for 10 seconds
400
What does the slope of line of a graph tell you about the speed of an object?
How fast or how slow the object is moving
500
Mechanical energy
500
What type of potential energy is this an example of?
Spring or elastic potential energy
500
A car and a motor cycle are traveling on the road at the SAME speed. Which object (car or motorcycle) has more kinetic energy? Give a short explanation for your answer.
The car has more kinetic energy because it is larger in mass.
500
Which of the following scenarios matches the movement of the graph.
A. Ruby is driving her car when she realizes she is late for work. She starts to increase her speed.
B. A car traveling at a constant speed of 65 mph for 10 seconds
C. A car slowing down as they reach a stop light
A. Ruby is driving her car when she realizes she is late for work. She starts to increase her speed.
500
Which object is traveling at a slower speed?
Object C
600
A bouncy ball is dropped from a height of 100cm. When the ball bouncy back up, it only goes to a height of 70 cm. The reason for this is because some of the balls kinetic energy is transferred to the molecules in the air as well as to the ground with each consecutive bounce. What law of energy is being observed in the bouncy ball.
The conservation of energy
600
What type of potential energy is found stored in food?
Chemical potential energy
600
Motorcycle A is traveling at a speed of 80 mph and motorcycle B is traveling at a speed of 50 mph on the road. They both measure 65kg in mass. Which motorcycle is has the least amount of kinetic energy? give a short explanation for your answer.
motorcycle B; because motorcycle B is moving at a slower speed.
600
Which of the following scenarios matches the movement of the graph.
A. Car stopped at a red light for 10 seconds
B. A car traveling at a constant speed of 65 mph for 10 seconds
C. A car slowing down as they reach a stop light
C. A car slowing down as they reach a stop light
600
Which object is traveling the fastest?
Object A