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WorksheetsCW 8.1 Buoyancy ม3
Total questions: 10
Worksheet time: 3mins
Name
Class
Date
1.
What is buoyant force?
a)
An upward force exerted by fluids on an object.
b)
An downward force exerted by fluids on an object.
2.
Water is the only liquid objects can either float or sink in.
a)
True
b)
False
3.
What does buoyancy depend on?
a)
The size of an object.
b)
The color of an object.
c)
The weight of an object.
d)
None of the above.
4.
Does saltwater make an egg float or sink?
a)
Sink
b)
Float
5.
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
d)
Volume of water in a stubstance
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.
If an object displaces less water than its weight, the object will
a)
float
b)
accelerate
c)
create friction
d)
sink
8.
The weight of the water displaced equals the upward force of water on an object
a)
Pressure
b)
Inertia
c)
Archimedes' Principle
d)
The Law of Water
9.
The buoyant force on an object equals 50 N. What is the weight of the displaced water?
a)
50 N
b)
50 lbs
c)
50 N/9.8 m/sec2
d)
not enough information given
10.
An object weighs 500 N. It displaces 150 N of water. While in water, the object's weight is
a)
500 N
b)
650 N
c)
.33 N
d)
350 N
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