1
A material through which heat or electricity do not flow easily
1. circuit
2. insulator
3. conductor
insulator
a material through which heat or electricity flows easily
1. current
2. insulator
3. conductor
conductor
a complete path through which electricity can flow
1. current
2. discharge
3. circuit
circuit
a flow of electrical charge is known as ____________
electric current
a circuit can be opened or closed with the help of _________
switch
TRUE OR FALSE
Conductors like copper wire have high resistance
false
a moving electrical charge is
1. current electricity
2. circuit
3. magnetic field
current electricity
a circuit with two bulbs on the same circuit in a single path is known as_______ circuit
series
another name for non conductor is ________
insulator
which term means to push apart (in magnets)?
1. repel
2. attract
3. refraction
repel
Which items are all examples of insulators
1. plastic, copper and rubber
2. water, copper and glass
3. plastic, rubber and glass
option 3
Explain what happens when the bar magnet breaks into half?
each part will have north pole and a south pole.
when the north pole of one magnet faces the south pole of another magnet, the magnets __________
1. attract and then fall off
2. fall off and then stick together
3. attract and stick together
attract and stick together
which set of magnets will be attracted ( please draw the diag and show)
1. north south/south north
2. north south / north south
3. south north/ north south
option b
what supplies energy in a electric circuit ?
1. conductor
2. cells
3. switches
cells
A copper wire, paper clip and aluminium are good types of
1. Resistor
2. insulators
3.conductors
conductors
a circuit in which the objects are connected in a single path
1. series circuit
2. parallel circuit
3. complete circuit
series circuit
region of magnetic force around a magnet
1. pole
2. discharge
3. magnetic field
magnetic field
a circuit is a closed circuit when
1. there are no gaps in its paths
2. there is a gap in its path
3.it contains a switch
option a
a________ is where a magnetic pull is strongest .
magnetic pole
TRUE OR FALSE
In a series circuit, all devices share the electric current equally
True
the door bell, telephone, car motors and loud speakers are all examples of
1. simple circuit
2. Electro magnets
3. conductors
Electro magnets
a circuit in which each object is connected to the cell separately
1.series circuit
2. parallel circuit
3. complete circuit
parallel circuit
a device that melts to keep too much electricity from flowing through wires
1. circuit
2. fuse
3. circuit breaker
fuse
a reusable switch that protects circuit from dangerous high currents
1. circuit
2. fuse
3. circuit breaker
circuit breaker