Static Electricity
Circuits
Magnetism
Momentum & Circuits
(continued)
(continued)
100
Which of the following describes static electricity?
a. The continuous flow of charges on an object
b. The transfer of charges on an object by direct contact
c. The build up of charges on an object
d. The transfer of charges by indirect contact
C- The build up of charges on an object
100
The part of electric circuit that uses power is called a(n)
a. power source
b. wire
c. switch
d. load
d. load
100
Magnetism is....
a. The part of the magnet where the force is the strongest
b. A force created by magnets that pulls (attracts) /pushes (repels) some metals
c. To Pull towards
d. An object able to pull some metals towards itself
b. A force created by magnets that pulls (attracts) /pushes (repels) some metals
100
Which is NOT an insulator?
a. Wood
b. Plastic
c. Copper
d. Glass
c. Copper
200
What type of static electricity is shown in the picture?
Friction
200
What kind of circuit is in the image?
a. Simple circuit
b. Series circuit
c. Parallel circuit
d. None of the above
b. a series circuit
200
What will happen when these magnets are brought close together?
a. They will attract each other.
b. They will repel each other.
c. Both magnets will turn to the left
d. Both magnets will turn to the right
b. They will repel each other
200
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45 seconds
A conductor is defined as__________.
a. Doesn't allow electricity to pass through it
b. Only conducts electricity in an open circuit
c. Does not light up a bulb if attached to a circuit
d. Allows electricity to pass through it
d. Allows electricity to pass through it
300
How is conduction different from induction?
Conduction objects are charged by direct contact. In induction, objects charged without any direct contact
300
Which position is the light switch shown in the picture? Will the light turn on or off? Why
It is off or open. The light will not turn on because there is no flow of electrons through the wire.
300
If you cut a magnet in half, what happens to the poles?
a. One half gets the North Pole, the other half gets the South Pole
b. Both halves get only a North Pole
c. Both halves get only a South Pole
d. Both halves get a North pole and a South Pole
d. Both halves get a North pole and a South Pole
300
Why does a truck have more momentum than a car traveling at the same speed?
a. The truck has more mass
b. The truck has less mass
c. The car is moving faster
d. The car has more mass
a. The truck has more mass
400
Based on the image what will happen to the balloons? Why?
They will attract because they have opposite charges.
400
What is the major difference between static electricity and current electricity?
a. Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons.
b. Current electricity can be deadly; static electricity is almost always safe.
c. In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons.
d. Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons.
D
400
Which of the following metals is not magnetic?
a. Iron
b. Cobalt
c. Aluminum
d. Nickel
c. Nickel
400
A deer with mass of 146 kg is running head-on toward you with a speed of 17m/s. Find the momentum of the deer.
Momentum= Mass x Velocity units (kg.m/s2)
What is 2,482 kg x m/s2
500
Which of the following is caused by static electricity?
a. a stove getting hot when it is turned on
b. a magnet being attracted to a refrigerator
c. a lightning strike during a storm
d. a light bulb coming on when a switch is turned on
C. a lightning strike during a storm
500
In a parallel circuit, what will happen if one of the bulbs does not work?
They continue to work because there is still a separate path from the power source to each of the light bulbs.
500
For the bolts in our lab activity to stick to the magnet. What would need to happen for the magnetic domains in the picture?
They need to line up in the same direction.
500
Momentum= Mass x Velocity units (kg.m/s2)
Which object has more momentum? A 50 kg object moving at 10m/s or a 2.5 kg object moving at 200m/s
There momentum is equal.