WorksheetsTopic 2 Test: Electricity and Magnetism
Total questions: 13
Worksheet time: 7mins
Anton carries out an investigation about electric forces. He draws a diagram of his results. Write T for true or F for false. Object X is positively charged.
T
F
Object Y is negatively charged.
True
False
Object X has a neutral charge.
T
F
Object Y has a neutral charge.
True
False
The objects are attracted to each other.
T
F
The objects are repelled from each other.
T
F
What question was Shante most likely trying to answer during her investigation?
Does rubbing a plastic object with wool increase the amount of electric charges the object has?
How many charges build up on a plastic object when it attracts paper objects?
What happens to the strength of an electric force when plastic is used to pick up paper?
Why does distance affect the strength of an electric force on plastic objects?
Which conclusion is best supported by Shante's results?
Only objects that are electrically charged using wool can attract pieces of paper.
Objects with a lot of electric charges apply a greater electric force than objects with fewer charges.
An electric force gets stronger when two charged objects are moved closer to each other.
Static discharge happens when a plastic rod is rubbed with a wool cloth at least 5 times.
Ian moves a rod close to a plate. The picture shows what happens. Which statements are true based on the picture? Choose two correct answers.
The rod is neutral.
The rod and the plate repel.
The plate is a conductor.
The rod attracts negative charges from the plate.
The diagram shows three objects that have electric charges. Which two objects will repel if they are brought close together.
X and Y
Y and Z
X and Z
Simone has a pile of objects: paper clips, coins, rubber bands, toothpicks, and iron nails. What problem can Simone solve using the magnet?
sorting the iron and steel objects from the pile
moving all the objects to another location
counting the numbers of objects in the pile
ordering the objects by mass
Which statements correctly compare electromagnets and permanent magnets?
Only permanent magnets can attract steel and iron objects.
Only electromagnets can be turned off.
Permanent magnets always have a larger electric field than electromagnets.
Electromagnets are always stronger than permanent magnets.
Describe a procedure Caleb can follow to answer his question about sorting iron objects from non-magnetic objects using the materials shown (Sand, Iron pieces, Magnet, Empty bowl).
Mix the sand and iron pieces, use the magnet to attract the iron pieces, and place them in the empty bowl.
Mix the sand and iron pieces, use the empty bowl to separate the iron pieces by hand, and use the magnet to check for any missed pieces.
Place the magnet in the empty bowl, then pour the sand and iron pieces over it to see what sticks.
Use the magnet to stir the sand and iron pieces together, then pour everything into the empty bowl.
