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WorksheetsVIII Cambridge
Total questions: 25
Worksheet time: 34mins
Name
Class
Date
1.
Which of the statements is true?
a)
The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
b)
The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
c)
The bottom of the shoe exerts the same pressure as the bottom of the boot.
2.
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
3.
Where would you find the largest pressure?
a)
At the bottom of the ocean
b)
At the top of Mt Everest
c)
Close to ground on the Scotch oval
d)
In a rockpool on the Great Barrier Reef
4.
Fluids can also include__ and__.
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
5.
What is the instrument that measures air pressure called?
a)
Graduated cylinder
b)
Barometer
c)
Force scale
d)
Anemometer
6.
When pressure is applied to a confined fluid, the increase in pressure is transmitted equally to all parts of the fluid. This fact is called________.
a)
Pascal's Principle
b)
Newton's Principle
c)
Archimedes' Principle
d)
Bernoulli's Principle
7.
A person wearing boots and a person wearing stilleto heels stand on a wooden floor. They both have the same weight. Which person exerts a greater pressure on the floor?
a)
boots because they have a larger surface area
b)
stiletto heels because they have a larger surface area
c)
boots because they have a smaller surface area
d)
stiletto heels boots because they have a smaller surface area
8.
In what direction(s) does air exert pressure?
a)
everywhere
b)
no where
c)
there is no pressure
d)
downward
9.
Which is MORE dense?
a)
Sponge
b)
Brick
10.
What is the equation used to calculate density?
a)
density=volume/mass
b)
density=force/area
c)
density=mass/volume
d)
density=force/volume
11.
A fish has a mass of 30g. What is the density of the fish?
a)
5 mL
b)
5 g/mL
c)
6 g/mL
d)
6 g
12.
Students have a container of water and several objects. The water will help students observe _____________.
a)
if the objects are made of iron
b)
whether the objects sink or float
c)
how quickly the objects heat up
d)
the mass of each object
13.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
14.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
15.
Why do ice cubes float in a glass of water?
a)
the ice cubes are more dense than the water
b)
the water is more dense than the ice cubes
c)
the water is more dense than the glass
d)
the ice is more dense than the glass
16.
The following liquids are poured together in a beaker: alcohol (density=0.79), corn syrup (density=1.38), water (density=1.0), and cooking oil (density=0.93). Which of these liquids will sink to the bottom of the beaker?
a)
alcohol
b)
corn syrup
c)
water
d)
cooking oil
17.
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
18.
Why do the liquids form different layers?
a)
They have different densities.
b)
They have different masses.
c)
They have different volumes.
d)
They are different temperatures.
19.
A gold brick has a density of 19.32 g/cm3. What is the density of half of the gold brick?
a)
9.66 g/cm3
b)
19.32 g/cm3
c)
38.64 g/cm3
d)
cannot be determined
20.
According to the picture from left to right, which of the answers is correct?
a)
neutrally buoyant, positively buoyant, negatively buoyant
b)
negatively buoyant, neutrally buoyant, positively buoyant
c)
positively buoyant, neutrally buoyant, negatively buoyant
d)
neutrally buoyant, negatively buoyant, positively buoyant
21.
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
22.
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.
23.
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
24.
In the water displacement method for finding volume
a)
You subtract the final volume from the initial volume
b)
You subtract the initial volume from the final volume
c)
You add the initial and final volumes
d)
You divide the final volume by 2
25.
What is relative density or specific gravity of a liquid
a)
density of substance / density of water
b)
density of water / density of substance
c)
density of substance x density of water
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