Units 4, 5, and 6 Final Exam Review

1.

1 point

How does the density of a block of gold change if it is cut in half?

the density is cut in half

the density is doubled

the density stays the same

not enough information

2.

1 point

Boyle's Law relates to

pressure and number of molecules

pressure and temperature

pressure and volume

temperature and volume

3.

1 point

The shower curtain moves in toward the bathtub when taking a hot shower because

the pressure inside the tub decreases

the pressure inside the tub increases

buoyancy increases inside the tub

the wind from the house pushes it

4.

1 point

If an object is floating, then the weight of the object is equal to

the weight of the displaced liquid

the density of the object

the density of the liquid

the atmospheric pressure

5.

1 point

A child places a 3 kg object on a spring so it stretches 0.04 m. How much will a spring stretch if a 12 kg object is suspended from it?

0.16 kg

900 kg

0.16 m

900 m

6.

1 point

What does the pressure of a liquid depend upon? Choose all the apply

surface area

density of the liquid

depth of the liquid

none of the above

7.

1 point

Archimedes' principle state that an object is buoyed up by a force that is equal to the

weight of the fluid displaced

mass of the fluid displaced

volume of the fluid displaced

mass of the object

8.

1 point

On a hot day Charle's law suggest that your fingers will swell because

as temperature increases, so does the volume of an object

as temperature increases, the volume of an object decreases

as temperature decreases, the volume of an object increases

not enough information

9.

1 point

The pressure at the top of a mountain is less than at the bottom of the mountain because

pressure increases at higher altitudes

pressure increases at greater depths

pressure decreases at greater depths

none of the above

10.

1 point

What is the buoyant force of a 0.05 cubic meter (m3) toy boat that has is floating in a liquid of density of 1.5 kg/m3? (include answer and units)

11.

1 point

What is the density of a 0.25 cm3 gold chain that is 5g? (include answer and units)

12.

1 point

What type of charge does an electron have?

positive

negative

neutral

none of the above

13.

1 point

What produces magnetic fields?

moving charged particles

charges at rest

moving protons

nothing, they just occur

14.

1 point

When two charges move closer together, what happens to the electrical force between them?

the electrical force gets smaller

the electrical force get larger

the electrical force stays the same

not enough information

15.

1 point

What are magnetic domains?

regions that may or may not be magnetized

clusters of atoms randomly aligned

regions of atoms magnetically aligned

blocks of material

16.

1 point

What does the unit ampere measure?

charge

current

energy

work

17.

1 point

What is the voltage of a circuit that carries 10 A and 2 ohms of resistance?

1/5 V

5 V

12 V

20 V

18.

1 point

What does the battery provide in a circuit?

current

resistance

potential energy

voltage

19.

1 point

A little girl shakes a rope so that it moves up and down three cycles per second. What is the frequency?

0.33 Hz

3 Hz

6 Hz

9 Hz

20.

1 point

A little girl shakes a rope so that it moves up and down three cycles per second. What is the period?

0.33 s

3 s

6 s

9 s

21.

1 point

Light is an example of a

longitudinal wave

constructive wave

transverse wave

destructive wave

22.

1 point

Sound is an example of a

longitudinal wave

constructive wave

transverse wave

destructive wave

23.

1 point

A 440 Hz sound wave has a wavelength of 0.50 m. What is the speed of the sound wave?

0.0011 m/s

220 m/s

440 m/s

880 m/s

24.

1 point

The bottom of a wave is

the amplitude

the wavelength

the crest

the trough

25.

1 point

One distance of one complete wave cycle is called

the amplitude

the wavelength

the crest

the trough