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Density, Sig Figs, and Convection

Total questions: 28

Worksheet time: 25mins

Name
Class
Date
1.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
2.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
3.
What units are used to measure Density?
a)
cm3/g
b)
g
c)
g/cm3
d)
cm3
4.
What is the density of this substance? 
a)
1 g/ml
b)
1 gram
c)
1ml
d)
10 g/ml
5.
Which substance is the MOST dense?  ** Use the key
a)
A
b)
B
c)
C
6.
Which graph correctly represents the relationship between mass and volume?
a)
A
b)
B
c)
C
d)
D
7.
What is the density of this substance?
a)
5 grams
b)
5 ml
c)
5 g/ml
d)
 10 g/ml
8.

What is the mass of 700 cm3 of petroleum?

a)

200 g

b)

400 g

c)

600 g

d)

800 g

9.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3
10.
If you cut a wooden block in half, each half would have 
a)
Half the density of the original piece
b)
 Twice the density of the original piece 
c)
The same density as the original piece
d)
No density at all 
11.
How many significant figures: 2016 m
a)
1
b)
2
c)
3
d)
4
12.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
13.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
14.
How many significant figures: 0.012 km
a)
1
b)
2
c)
3
d)
4
15.
Round 0.010229 to four sig figs
a)
1022
b)
1023
c)
0.01023
d)
0.01022
16.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
17.
calculate the following to the correct number of sig figs.
0.00401  x  2.00  x  501
a)
4.02
b)
4
c)
4.0
d)
4.0180
18.
calculate the following to the correct number of sig figs.
13.2017/ 17.10
a)
.772
b)
.7720
c)
.772030
d)
.77
19.
Solve and round accordingly.
1.256 - 0.004 + 123.09 = ?
a)
100
b)
124.3
c)
124.34
d)
120
20.
Solve and round accordingly.
25.0 x 17 = ?
a)
430
b)
425
c)
425.0
d)
430.0
21.

Convection can take place in _________________.

a)

solids only

b)

liquids only

c)

liquids and gases only

d)

solids, liquids and gases

22.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
d)
It can travel high to low and low to high. 
23.

When air is heated, its density ___________.

a)

increases

b)

decreases

c)

remains the same

24.

When air is heated, its volume ____________.

a)

increases

b)

decreases

c)

remains the same

25.

In the process of convection, energy is transferred _________.

a)

because of temperature differences in a solid

b)

because of density differences in a liquid

c)

by the diffusion of molecules throughout a fluid

d)

by the vibration of molecules

26.

Some dye in a beaker of water is gently heated. Why are the streaks of dye seen in the water?

a)

The hot dye is a better conductor than the cool water.

b)

The hot dye is a better convector than the cool water.

c)

The hot water is less dense than the cool water.

d)

The hot water is denser than the cool water.

27.

Which of the following correctly shows the direction of convection currents in water?

a)

A

b)

B

c)

C

d)

D

28.

Heat transfer by convection is caused by differences in what two things:

a)

Thickness and material

b)

Weight and electricity

c)

Temperature and density

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