WorksheetsSummer School Physical Science - CH 8 - Section II
Total questions: 10
Worksheet time: 6mins
Current that does not reverse direction is called _________.
Direct current
Alternating current
Magnetic current
Circuit current
Current that reverses direction in a regular pattern is called ____________.
Direct current
Alternating current
Magnetic current
Circuit current
An instrument that measures electric current is a ________.
Transformer
Motor
Commutator
Galvanometer
A reversing switch that rotates with the coil in an electric motor and reverses the direction of the current every half turn is called what?
Transformer
Motor
Commutator
Galvanometer
What is the function of an electric motor?
To change electrical energy into chemical energy
To change chemical energy into electrical energy
To change mechanical energy into electrical energy
To change electrical energy into mechanical energy
A galvanometer measures ___________.
Voltage
Magnetism
Resistance
Electric current
The strength of magnetic force in an electromagnet is ________ by increasing the current through the coil.
Decreased
Increased
Unaffected
Eliminated
