PS2 Energy & Electricity

What is an open circuit?

• a broken circuit and electricity can't flow
• when electrical current flows through a complete path
• opens or closes a circuit to turn power on and off
• stores electricity

Which combination of changes is most likely to increase the strength of an electromagnet?

• Using more batteries and adding more coils of wire
• Adding more coils of wire and using fewer batteries
• Using different types of nails and increasing the distance from the paper clip
• Using fewer batteries and changing the type of paper clip

Tags

NGSS.MS-PS2-5

You measured the mass of 5 DRY tissues. Then you put these tissues under the faucet until they are soaking wet. What happens to the mass of the tissues?

• The tissues would weight more if they were crumpled in a ball
• The mass stayed the same before and after
• The mass was more after adding the water
• There would be no change before and after

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

a conductor is...

• a material electricity flows through
• stores electricity
• opens or closes a circuit to turn power on and off
• a material electricity can't flow through

an insulator is...

• a material electricity can't flow through
• opens or closes a circuit to turn power on and off
• a form of energy that can produce light, heat and run appliances
• a circuit with all parts connected in a single loop

a parallel circuit is

• a circuit with multiple paths for electricity to flow
• a circuit with all parts connected in a single loop
• an incomplete circuit which electricity can not flow

a series circuit is...

• a circuit with all parts connected in a single path
• a circuit with multiple paths for electricity to flow
• an incomplete circuit in which electrical current can not flow because the path is broken

energy transformation is...

• when energy changes from on form to another
• stored energy
• a unit of electric force
• a form of energy used for lighting, heating, etc.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

current is...

• the flow of electricity through a conductor
• a circuit which electrical current can not flow because the path for current is broken
• measures how well a material conducts electricity
• a unit of electric force

Which of the following would change the temperature of an object? (select all that apply)

• Rubbing an object against something
• Looking at a bicycle parked in the garage
• Bending metal back and forth
• Listening to music

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4