Physics Final Review

The energy of motion

• Kinetic

• Electrical

• Thermal

• Mechanical

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Machines lose efficiency because of

• impulse

• heat

• fuel

• friction

Work is

• always in the direction of motion

• energy being used

• force multipled by distance

• all answers

Electrostatics is

• the buildup of charges

• a force from negative charge

• discharge of electricity

• what makes lightbulbs light

Tags

NGSS.MS-PS2-5

Resistance increases in a wire when

• the wire becomes thicker

• The wire becomes thinner

• The wire become shorter

• The a rubber wire is replaced with a copper one

When waves change mediums they

• reflect

• refract

• diffract

• disapear

Tags

NGSS.MS-PS4-2

Frequency of sound is experienced as

• volume

• length

• intensity

• pitch

We need a _____ circuit for the light bulb to BE ON. 

• closed

• open

Which statement is true?

• The light bulb will light up because the  circuit is complete.

• The light bulb will light up because the  circuit is broken.

• The light bulb will not light up because the  circuit is complete.

• The light bulb will not light up because the  circuit is broken.

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit? (Current = volts / ohms)

• 3 Amps

• 192 Amps

• 2 Amps

• 4 Amps