WorksheetsPhysics G11
Total questions: 75
Worksheet time: 2hrs 49mins
What is the formula for liquid pressure?
P=pg
P=hpg
P=hg
Pressure in liquids is not affected by the
mass or size
density or size
size or shape
The S.I unit for pressure is
pascal (Pa)
mm Hg
m H2O
millibar (mbar)
what is the pressure symbol?
p
area
pgh
N
What is the instrument that measures air pressure called?
Graduated cylinder
Barometer
Anemometer
thermometer
Look at the pressure triangle. How do we calculate the area?
f ÷ a
p x f
f ÷ p
f x p
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
100 N/cm2
40 N/cm2
400 N/cm2
10 N/cm2
Atmospheric pressure increases as you move towards lower elevations and decreases as you move into higher elevations.
true
false
What is the unit of measurement for pressure?
grams
milliters
pascal
Pressure decreases when the surface area over which a force is applied increases
False
True
Which of the statements is true?
The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
The bottom of the shoe exerts the same pressure as the bottom of the boot.
We can increase the pressure of a gas by:
Adding more gas.
Reduce the volume of the container.
Increase the temperature of the gas.
all of the above
Pressure in gases is a measure of:
the number of collisions per second of the particles with the side of the container.
the force of the collisions of the particles with the side of the container.
the amount of space taken up by the particles in the container.
None of the above
Pressure can be exerted by solids, liquids and gases.
TRUE
FALSE
The diagram shows a cross-section of a pool. The density of water in the pool is 1000 kg m-3.
What is the pressure exerted by the water at X?
2.5 x 102 Pa
2.5 x 10-3 Pa
4.0 x 103 Pa
4.0 x 104 Pa
Diagram 6 shows a container filled with water.
Which is the correct comparison of the pressure at P and Q?
Pressure at P > pressure at Q
Pressure at P = pressure at Q
Pressure at P < pressure at Q
Diagram 7 shows two identical containers containing liquid P and Q.
When the height of liquid P is 15 cm and the height of liquid Q is 20 cm, water spurts is the same.
The density of liquid P is 2.0 g cm-3.
What is the density of liquid Q?
0.67 g cm-3
1.30 g cm-3
1.50 g cm-3
2.70 g cm-3
Diagram 11 shows the process of supplying water from a water tank on a hill to a water tank X on a tall building.
Calculate the pressure of the water at X?
[Density of water: 1000 kg m-3]
1.0 x 105 Nm‑2
1.4 x 105 Nm‑2
1.6 x 105 Nm‑2
2.6 x 105 Nm‑2
What is meant by force
A force Is a cause which tends to results in movement or change in size or shape of the body
Force is that cause which changes the state of a body or changes the size or shape of the body
Both option A and B
None of these
Speed of the body is defined as the distance travelled by the body in one second
True
False
Unit of force is (a) (S.I unit)
Moment of force = (a)
In which direction liquid exerts pressure
In all directions
Sideways
Downward
All of these
What do all waves transfer?
Matter
Heat
Electricity
Energy
Which of the following can waves transfer energy through?
solid
liquid
gas
empty space
all of the above
What are the two types of waves?
longitudinal and transverse
sound and light
What is the number of complete waves passing a fixed point in a given amount of time?
Amplitude
Intensity
Wavelength
Frequency
What is the frequency of this wave? You must count the number of complete waves.
1 Hz
5 Hz
10 Hz
What is frequency measured in?
Milliseconds
Miles
Hertz
Kilograms
Which type of waves have the longest wavelength?
Visible light
Radio waves
X-rays
Gamma-Rays
Shorter wave lengths can carry more energy. Which of these probably carries the MOST energy:
Infrared light
Visible light
X-rays
UV light
What is the distance between the calm sea and the highest wave called?
Wave
Frequency
Amplitude
Magnitude
Sound waves move faster in what temperature?
higher temperature
lower temperature
it makes no difference
both
Suppose sound waves travel at 340 m/s through the air on a particular day. If you throw a Pop-It on the ground and it makes a sound, how long will it take for you to hear the echo off a wall 170 m away?
340 s
170 s
2 s
1 s
0.5 s
A guitar string vibrates with a frequency of 320 hz. If the wavelength of the vibration is 0.23 meters what is the speed of the wave?
320.23 m/s
1391.3 hz
73.6 m/hz
73.6 m/s
When we're talking about a pendulum, what does T stand for?
pi
period
length
gravity
What is the unit for the period of a pendulum?
second
meter
m/s/s
Newton
As a pendulum gets longer, what happens to the period?
doesn't change
decreases
increases
At what point in the swing of a pendulum is the bob moving fastest?
at the top of the arc
at the bottom of the arc
Which of these does not affect the period of a pendulum?
length
gravity
mass
Which would have the longest period?
Pendulum A: A 200-g mass attached to a 1.0-m length string
Pendulum B: A 400-g mass attached to a 0.5-m length string
A
B
Same
A sound wave can travel through....
Solids only
Liquids only
Solids, Liquids, and Gas
Gas only
A box of weight W is lifted by a force F using a lever as shown below.
What is the mechanical advantage of the lever (MA=Input Distance/Output Distance)?
0.5
2
3
6
Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever (MA=Output Force/Input Force)?
1
10
100
1000
What is the mechanical advantage of this pulley?
.5
1
1.5
2
An effort of 450 newtons is applied to this pulley. What is the force of the load that will be lifted?
450
600
750
900
What is the mechanical advantage of this pulley system?
4
6
8
10
What value will you get if you calculate the gradient of a v-t graph
acceleration
velocity
deceleration
displacement
Describe this graph
constant acceleration
constant deceleration
object move to the left
constant velocity
A spring has a spring constant of 450 N/m. How far is the spring compressed if 150 N of force are used?
2.2 m
3m
5.0 m
0.3 m
A force of 400 N is applied to stretch a spring which has a spring constant, k=100 N/m. How much does the spring stretch past its free length?
0.4 m
2.34 m
4 m
5.17 m
A force of F=500 N is applied to extend a spring. What is the displacement x of the spring if its spring constant is k= 500 N/m?
0.1 m
1 m
1000 m
100m
A net force of 1400 N acts to stretch an extension spring. How far will the spring stretch if its spring constant is 700 N/m?
1.0
0.5m
1.5 m
2.0 m
the symbol for specific latent heat is
c
l
Q
m
if 334000 J of heat is required to change state of 1 kg of ice into water then heat of fusion is
668000 J/kg
334000 kg
334000 J/kg
668000 J
which value is larger for a substance
latent heat of fusion
latent heat of vaporisation
What is internal energy
the average kinetic energy of the particles
heat energy
the sum of the kinetic and potential energy
the average potential energy
Which best describes the transfer of heat due to the movement of gases and liquids?
radiation
convection
evaporation
condensation
Ice cubes are placed in a glass of water that is at room temperature. Which statement best describes the temperature of the water after 10 minutes?
The temperature decreases because some of the water's heat is lost to the ice.
The temperature decreases because some of the ice's heat is lost to the water.
The temperature increases because some of the coolness of the water is absorbed by the ice.
The temperature increases because some of the coolness of the ice is absorbed by the water.
