| Electricity | Energy | Electricity #2 | Motion | Bonus |
|---|---|---|---|---|
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What is the equation for current?
Current- Voltage/ Resistance
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What is mechanical energy?
Energy associated with motion
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What is voltage?
The push that causes electrons to flow through a circuit
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What is motion?
Motion is a change in position measured by distance and time.
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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
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What is a conductor?
A conductor is an object that allows energy to flow through it
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What is heat (thermal) energy?
When individual atoms move faster the thermal energy goes up and the object gets warm.
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What is the mathematical equation that shows the relationship between current, potential difference and resistance?
V= I X R
I= V/R |
What is speed?
Speed tells us rate at which an object moves
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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
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What is one example of a conductor?
Ex. copper, steel and aluminum
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What is electrical energy?
Energy from moving electrical charges
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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.
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What is velocity?
Velocity tells the speed and direction of a moving object.
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What are the forces that act on a falling object?
Gravity and air resistance
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What is an insulator?
An insulator is a object that does not allow energy to flow through it.
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What is nuclear energy?
Transfer of electrons when atoms are split apart.
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Electric current is measured in what SI unit?
Ampere (a)
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What is acceleration?
Acceleration tells us the rate speed or direction changes.
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A force the opposes motion is.....?
Friction
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What is an example of an insulator?
Ex. rubber and plastic
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What is chemical energy?
Energy stored in the bonds of molecules
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When objects are rubbed together, electrons can transfer from one object to another. The object that loses electrons takes on a __________.
Positive charge
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What do you need to determine motion?
A frame of reference
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All objects accelerate at a _ _ _ _ regardless of their mass?
Constant rate of speed
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