Study guide for mrs rose

What would happen to the magnet field if the bar magnet were cut in half along the center line?

• its magnetism would be destroyed

• one half would be south pole and the other would be north pole

• both halves would only have south poles

• each half would have a north pole and a south pole

what will happen to the second light bulb if the first light bulb burns out

• it will get brighter

• it will explode

• nothing will change

• it will also go out

which of the following changes would increase the strength of the magnetic field?

• adding a light bulb to the circuit

• removing the core

• decreasing the current

• increasing the numbers of coils

in a closed electrical circuit what visible evidence indicates that energy is flowing

• A new battery

• a closed switch

• connected wires

• a light bulb lighting up

what are the tiny particles that make up matter?

• charges

• atoms

• electricity

• forces

what is the region around a charged object where an electric force is present?

• eletric field

• electron

• proton

• electric force

Allison rubs a ballon on her hair and changes both the ballon and her hair. What will happen if alison holds the ballon 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 ballon because her hair and the balloon are oppositely charged.

Which part of the atom has a positive charge?

• proton

• electron

• neutron

• nucleus

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

• electrical insulater

• electrical conducter

• static electricity

• electric discharge

What is the loss of static electricity as charges move off an object?

• static

• electric discharge

• friction

• induction