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Electricity Energy Electricity #2 Motion Bonus
100
What is the equation for current?
Current- Voltage/ Resistance
100
What is mechanical energy?
Energy associated with motion
100
What is voltage?
The push that causes electrons to flow through a circuit
100
What is motion?
Motion is a change in position measured by distance and time.
100
Which distance can be most accurately measure with a ruler?
a.) the length of a river
b.) the width of a book
c.) the distance between two cities
b.) the width of a book
200
What is a conductor?
A conductor is an object that allows energy to flow through it
200
What is heat (thermal) energy?
When individual atoms move faster the thermal energy goes up and the object gets warm.
200
What is the mathematical equation that shows the relationship between current, potential difference and resistance?
V= I X R
I= V/R
200
What is speed?
Speed tells us rate at which an object moves
200
What does newtons first law of motion state?
A body remains at rest or in motion with a constant velocity unless acted upon by an external force
300
What is one example of a conductor?
Ex. copper, steel and aluminum
300
What is electrical energy?
Energy from moving electrical charges
300
What is the difference between conduction and induction?
Conduction is the transfer of charge by contact and induction is the transfer of charge without contact.
300
What is velocity?
Velocity tells the speed and direction of a moving object.
300
What are the forces that act on a falling object?
Gravity and air resistance
400
What is an insulator?
An insulator is a object that does not allow energy to flow through it.
400
What is nuclear energy?
Transfer of electrons when atoms are split apart.
400
Electric current is measured in what SI unit?
Ampere (a)
400
What is acceleration?
Acceleration tells us the rate speed or direction changes.
400
A force the opposes motion is.....?
Friction
500
What is an example of an insulator?
Ex. rubber and plastic
500
What is chemical energy?
Energy stored in the bonds of molecules
500
When objects are rubbed together, electrons can transfer from one object to another. The object that loses electrons takes on a __________.
Positive charge
500
What do you need to determine motion?
A frame of reference
500
All objects accelerate at a _ _ _ _ regardless of their mass?
Constant rate of speed




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