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WorksheetsS8P5 Electricity and Magnetism
Total questions: 25
Worksheet time: 29mins
The variables _______ and ________ affect the gravitational force between objects.
weight, mass
volume, weight
distance, mass
rotation, distance
An astronaut travels to the moon. What is true regarding her mass and weight?
Her mass and weight are greater on Earth.
Her mass and weight are the same on the moon as on Earth.
Her mass is the same on the moon and Earth, but her weight is greater on Earth.
Her weight is the same on the moon and Earth, but her mass is greater on Earth.
A charged object (A) comes in to contact with an uncharged object (B). In the process, object A loses electrons and object B gains electrons. Which of the following is true?
Object B lost protons
Object B has no charge
Object B now has a positive charge
Object B now has a negative charge
If you hold a balloon by a string and the balloon moves toward your sweater and sticks there, what would you infer?
That the balloon and the sweater have no charges.
That the balloon and the sweater have like charges.
That the balloon and the sweater have neutral charges.
That the balloon and the sweater have opposite charges.
What process is the method by which a neutral object obtains an electrical charge?
convection
discharge
induction
radiation
Friction, conduction and induction are three ways of creating a static charge on an object. Which method or methods will produce the same charge on two objects?
Friction Only
Conduction Only
the neutrally charged wall.
another negatively charged balloon.
After turning off the television, you approach it. As you get close, but not touching it, the hairs on your arm start to stand up. This is an excellent example of static charge built up by
conduction
convectin
friction
induction
Sandy rubs a rubber rod with a piece of animal fur. The total charge of the system before rubbing is zero. The system is made up of the rubber rod and the fur. Initially, the charge on the rod is zero and it is electrically neutral. The same is true for the fur. When Sandy rubs the rubber rod with the fur, the rubber rod acquires negative (-) charges. How does the system change, overall, based on the law of conservation of charge?
The total charge of the system is now negative rather than neutral.
Although the rod becomes negatively charged, the piece of fur remains neutral.
If the rod becomes negatively charged, then the fur becomes positively charged.
Both the rod and the piece of fur have become negatively charged during the rubbing.
What do we call a device that converts electricity into mechanical movement?
electric charge
electric motor
electric current
electric plasma
What do you call a device that converts mechanical movement into electricity?
electric field
electric motor
electric generator
electric plasma
What must the student do in the picture, in order to induce electricity and move the the galvonometer
nothing
move the magnet
add more loops of wire
unplug the galvnonmeter
A magnet has two poles, a North and South. What happens when two magnet's South poles are placed near each other?
They attract
They do nothing
They move sideways
They repel each other
The following material is not a good electrical conductor
Plastic
Copper
Iron
human body
Based on the arrangement of the electric field lines in the diagram, what are the charges?
both charges are the same
the charges are opposite
they are neutral; no charge
Which diagram correctly shows the field lines between two like charges?
A
B
Both
Neither
