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100
What is lotion!
When an object’s distance from a reference point is changing
100
In a distance vs. time graph, what does a horizontal line represent?
no motion
100
True or False: Energy is constantly changing forms.
True
100
What type of energy is digestion?
Chemical
100
True or False: Copper wire makes a good insulator.
False; Copper wire makes a good conductor.
200
What is velocity?
Speed in a given direction
200
In a distance vs. time graph, what does a straight diagonal line represent?
constant speed
200
What type of energy is being used when a tennis player holds her racket and waits for the ball to come over the net?
Potential Energy
200
What type of energy would a trumpet produce?
Sound Energy
200
How many paths are there for electricity to flow in a series circuit?
One path
300
What is the rate at which velocity changes?
Acceleration
300
In a distance vs. time graph, what does a curved slope represent?
Acceleration (positive or negative would depend on slope)
300
my name is jeff
Light Energy and Sound Energy
300
What type of energy would be produced by the heat from a toaster?
Thermal Energy
300
What type circuit is used in homes to prevent circuit breaks and house fires?
Parallel Circuit
400
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Speed = Distance / Time
400
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constant speed
400
What is the formula for mechanical energy?
KE + PE = ME (kinetic energy plus potential energy)
400
What type of energy is produced most commonly by the sun?
Light Energy
400
What type of circuit allows for a complete path for electrons to flow?
Closed Circuit
500
What are the three types of acceleration?
Increasing speed, decreasing speed, and change of direction
500
In a speed vs. time graph, what does a straight diagonal line represent?
constant acceleration
500
What are Newton’s 1st and 2nd laws?
(1) An object will resist any change in motion (2) Acceleration = Net Force / Mass
500
What type of energy would we associate with a circuit breaker?
Electrical Energy
500
What causes electrical energy?
Electrical Charges