Electricity and Magnetism Review

What method is involved when charged atoms in an uncharged metal object are rearranged without direct contact with a charged object? 

• friction
• induction
• convection
• conduction

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If a material does not allow charges to move through it easily, what is it called? 

• electrical insulator
• electrical conductor
• static electricity
• electric discharge

Sara rubs a balloon on her hair and charges both the balloon and her hair. What will happen if Tara holds the balloon close to her hair? 

• Her hair will be repelled by the balloon because her hair and the balloon have the same charge. 
• Her hair will be attracted to the balloon because her hair and the balloon have the same charge. 
• Her hair will be repelled by the balloon because her hair and the balloon are oppositely charged. 
• Her hair will be attracted to the balloon because her hair and the balloon are oppositely charged. 

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The size of an electric force depends on which two things? 

• the amount of each charge and the size of the electric field
• The distance between the charges and the size of the electric field
• the number of protons and the distance between the charges
• the amount of each charge and the distance between the charges. 

Tags

NGSS.HS-PS2-4

What happens when electrons move from one object to another by direct contact? 

• friction
• detection
• induction
• conduction

If the leaves of an electroscope spread apart, it indicates that ___. 

• the leaves are neutral. 
• the leaves have received a charge. 
• no charge is moving through the electroscope. 
• there is static electricity in the electroscope. 

Electric charge that has accumulated or built up on an object is referred to as ___. 

• circuit electricity. 
• current electricity. 
• current circuit. 
• static electricity. 

The type of current produced by a battery is

• direct current. 
• alternating current. 
• magnetic current. 
• induced current. 

A static discharge differs from an electric current in that a static discharge ___. 

• involves the movement of ions as well as electrons
• is a flow of electrons
• lasts for only a fraction of a second
• results because a force is exerted on the electrons. 

What is the rate at which charges pass a given point? 

• electrical energy
• ohms
• electric current
• voltage