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WorksheetsDensity & Buoyancy
Total questions: 32
Worksheet time: 28mins
Name
Class
Date
1.
Density is defined as...
a)
Centimeters cubed per mass of substance
b)
Mass per unit volume of a substance
c)
Flow rate of a substance
2.
If the mass of an object is 6kg on earth. what would the mass be on the moon?
a)
6kg
b)
0kg
c)
1kg
d)
13kg
3.
The formula for density is...
a)
mass/ acceleration
b)
volume/ mass
c)
mass/ volume
d)
none
4.
How do we calculate density? (with correct units!)
a)
D = m/v (in g/mL or g/cm3)
b)
D = v/m (in g/mL or g/cm2)
c)
D=m/v (in mL/g or cm3/g)
5.
Looking at the image... can oak float in water?
a)
Yes
b)
No
6.
Buoyancy is the tendency for objects to float in a fluid. We consider buoyancy the...
a)
Un-gravity force
b)
Anti-gravity force
c)
Gravitational pull
d)
Downwards pull on an object
7.
True or False: Volume is the amount of matter in a substance. Mass is the amount of space a substance takes up.
a)
True
b)
False
8.
Swim bladders and ballistic tanks in a submarine serve to control the ________________ of a fish and a submarine.
a)
Buoyant force
b)
Neutral buoyancy
c)
Average density
9.
True or False: Buoyancy is an upwards force measured in Newtons.
a)
True
b)
False
10.
Archimedes' Principle states that...
a)
The buoyant force acting on an object equals the volume of the fluid displaced by the object.
b)
The buoyant force acting on an object equals the weight (force of gravity) of the fluid displaced by the object.
c)
The buoyant force acting on an object will always be equal.
11.
Which will result in positive buoyancy?
a)
When the buoyant force is greater than the force of gravity
b)
When the buoyant force is equal to the force of gravity
c)
When the buoyant force is less than the force of gravity
12.
How could you make plastic sink and steel float?
a)
You can't
b)
Change the shape and therefore surface area
c)
Remove some mass
13.
What is buoyant force?
a)
An upward force exerted by fluids on an object.
b)
An downward force exerted by fluids on an object.
14.
An empty water bottle floating on the water is an example of....
a)
positive buoyancy
b)
negative buoyoncy
15.
Water is the only fluid that can provide buoyancy.
a)
true
b)
false
16.
Which of the following is a true statement?
a)
A rowboat has positive buoyancy
b)
A cork has negative buoyancy
c)
A brick has positive buoyancy
d)
A penny has neutral buoyancy
17.
If two objects are made of the same substance and have the same mass, the shape of the object determines whether or not it sinks or floats in a fluid.
a)
True
b)
False
18.
If this substance takes up 6ml of space, what is its mass?
a)
6 ml
b)
6 grams
c)
0 grams
d)
4 grams
19.
Which graph correctly represents the relationship between mass and volume?
a)
A
b)
B
c)
C
d)
D
20.
What is the density of this substance?
a)
5 grams
b)
5 ml
c)
5 g/ml
d)
10 g/ml
21.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
22.
An empty beaker has a mass of 60 grams. When mercury is added to the graduated cylinder, it has a mass of 200 grams. What is the mass of the mercury?
a)
140 grams
b)
200 grams
c)
140 mL
d)
260 g
23.
The density of this material is 2 g/cm3.
There are 24 cm3 Find the total mass.
There are 24 cm3 Find the total mass.
a)
12 grams
b)
48 grams
c)
12 g/cm3
d)
48 g/cm3
24.
Find the volume of this piece of brass.
a)
50 g
b)
10 cm
c)
6 cm3
d)
12 cm3
25.
Which box has a higher density?
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
26.
What do we know about the density of lamp oil, rubbing alcohol, and vegetable oil?
a)
The density is greater than 1.0 g/mL
b)
The density is less than 1.0 g/mL
c)
The density is equal to 1.0 g/mL
d)
The density can not be determined
27.
How many millileters are in 0.04L?
a)
0.004L
b)
0.004ml
c)
40ml
d)
4L
28.
True or false... "mass" is the exact same thing as "weight"?
a)
True
b)
False
29.
What happens when you heat a gas?
a)
It gains mass.
b)
It loses mass.
c)
It increases in volume.
d)
It decreases in volume.
30.
The density of water is about 100 kg/m3 at room temperature.
a)
true
b)
false
31.
which of the following statements is true?
a)
oil floats on water because oil is less dense than water
b)
oil does not float on water because water is more dense
c)
water floats on oil because water is less dense
32.
Hot air is less dense than cold air
a)
true
b)
false
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