Electricity

Substances which allow the flow of electric current through them are called __________

• Insulators

• Non- conductors

• Conductors

• Transmitters

The complete path through which current flows is called an______________

• Electric circuit

• Electric switch

• Secondary cell

• Primary cell

An electric cell is a device which converts chemical energy into_________

• Mechanical energy

• Electrical energy

• Wind energy

• Potential energy

An electric current flows from the__________ to the________ terminal

• Positive to negative

• Negative to positive

• Positive to positive

• Negative to negative

What is the term used to describe the opposition that a device or material offers to the flow of direct current?

• Resistance

• Capacitance

• Inductance

• Conductance

What type of energy transformation occurs in a battery-powered flashlight?

• Chemical to Electrical to Light

• Electrical to Chemical to Light

• Light to Chemical to Electrical

• Chemical to Light to Electrical

Copper is a good conductor of electricity

• False

• True

The electricity that comes to our house is generated at the powerhouse stations

• True

• False

The girl's hair and the comb are attracting  one another.  The hair and the comb have

• opposite charges

• like charges

Tags

NGSS.MS-PS2-3

Mrs. Davis rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.

• The balloons will attract each other.

• The balloons will become positively (+) charged.

• The balloons will pop.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5