LIP Physics Midterm Review

Question 1

Unit of resistance

Accepted Answer

Ohm

Question 2

As materials heat, they expand

Accepted Answer

True

Question 3

Sound waves are transverse waves

Accepted Answer

False

Question 4

Matter is made up of small particles that move constantly

Accepted Answer

Kinetic theory of matter

Question 5

When the temperature is increasing, the substance is not in a phase change (it's a solid, liquid or gas)

Accepted Answer

True

Question 6

Heat transferred by direct contact

Accepted Answer

Conduction/Contact

Question 7

A fact is an observation that has been repeatedly confirmed and is accepted as true.

Accepted Answer

True

Question 8

Energy transferred in the form of waves

Accepted Answer

Radiation

Question 9

Unit of Power

Accepted Answer

watt

Question 10

A scientific test of a hypothesis

Accepted Answer

Experiment

Question 11

What type of wave is this?

Accepted Answer

Longitudinal Wave

Question 12

A lower specific heat means an object heats up more quickly than an object with a high specific heat.

Accepted Answer

True

Question 13

Air and fluids transfer energy by movement of molecules in this way

Accepted Answer

convection

Question 14

Example of a good insulator

Accepted Answer

rubber

Question 15

If the wavelength is 10m and the frequency is 10 Hz, what is the wave speed (v=λf)

Accepted Answer

100 m/s

Question 16

This changes as the independent variable changes

Accepted Answer

dependent variable

Question 17

A pot of water gains 840 Joules of heat. The change in water temp is 50 degrees. What is the mass of the water?

Accepted Answer

kg

Question 18

When a hot spoon is dropped into cold water, the spoon and water will eventually become the same temperature.

Accepted Answer

True

Question 19

If current is 15 amps, and resistance is 10 ohms, what is Voltage (V = IR)

Accepted Answer

150 volts

Question 20

When a solid is heated, this happens

Accepted Answer

molecular speed of the solid increases

Question 21

Unit of current

Accepted Answer

ampere (amp)

Question 22

If power is 75 watts and current is 15 amps, what is voltage? (V = P/I)

Accepted Answer

5 volts

Question 23

Good conductors allow heat to move easily

Accepted Answer

True

Question 24

The unit for wavespeed is

Accepted Answer

m/s

Question 25

The unit for frequency is

Accepted Answer

Hz

Question 26

A factor in an experiment that stays the same

Accepted Answer

controlled variable

Question 27

The high point of a wave is called

Accepted Answer

crest

Question 28

When the temperature stays the same (horizontal line), a substance is in a phase change

Accepted Answer

True

LIP Physics Midterm Review

Questions 28

LIP Physics Midterm Review

Questions 28