wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

physic g7

Total questions: 131

Worksheet time: 1hrs 29mins

Name
Class
Date
1.

Which statement best describes the movement of particles during diffusion?

a)

A) Particles move only in one direction

b)

B) Particles move randomly in all directions

c)

C) Particles move in a straight line

d)

D) Particles move only when a force is applied

2.

According to particle theory, why does a gas exert pressure on its container?

a)

A) Because gas particles collide with each other

b)

B) Because gas particles are attracted to each other

c)

C) Because gas particles have mass

d)

D) Because gas particles are in constant motion and collide with the walls of the container

3.

How is pressure defined in terms of force and area?

a)

A) Pressure = force + area

b)

B) Pressure = force - area

c)

C) Pressure = force / area

d)

D) Pressure = area / force

4.

In a liquid, why does pressure increase with depth?

a)

A) Because the particles in a liquid are closer together at greater depths

b)

B) Because gravity pulls the particles downward, increasing the force exerted on the bottom

c)

C) Because the weight of the liquid above increases with depth, resulting in more force exerted on the bottom

d)

D) Because the temperature of the liquid increases with depth, causing more collisions with the container walls

5.

How does the rate of diffusion change with an increase in temperature?

a)

A) It decreases

b)

B) It remains constant

c)

C) It increases

d)

D) It depends on the type of substance

6.

If the force applied remains constant, what happens to the pressure if the area over which the force is applied increases?

a)

A) The pressure decreases

b)

B) The pressure increases

c)

C) The pressure remains constant

d)

D) The pressure becomes zero

7.

Which of the following statements is true regarding pressure?

a)

A) Pressure increases with a decrease in force

b)

B) Pressure decreases with an increase in area

c)

C) Pressure is independent of the area over which the force is applied

d)

D) Pressure and force are directly proportional

8.

What is diffusion?

a)

A) The separation of substances by a semipermeable membrane

b)

B) The movement of particles from an area of higher concentration to an area of lower concentration

c)

C) The mixing of substances due to the movement of particles

d)

D) The conversion of solids into gases

9.

How does an increase in temperature affect the pressure of a gas at constant volume?

a)

A) It decreases the pressure

b)

B) It increases the pressure

c)

C) It has no effect on the pressure

d)

D) It depends on the type of gas

10.
What is the difference between particles in a gas and a solid?
a)
gas particles are closer together
b)
solid particles move faster than gas particles
c)
solid particles expand on heating
d)
gas particles have more kinetic energy than solid particles
11.
How can we increase the gas pressure inside a sealed container?
a)
Increase the number of particles inside the container
b)
Increase the temperature
c)
Decrease the volume of the container
d)
All of these
12.
In what direction(s) does air exert pressure?
a)
everywhere
b)
no where
c)
there is no pressure
d)
downward
13.

Pressure can be exerted by solids, liquids and gases.

a)

TRUE

b)

FALSE

14.
When particles move from areas of high concentration to areas less concentrated, this has taken place.
a)
diffusion
b)
mitosis
c)
endocytosis
d)
photosynthesis
15.
Which diagram best shows the end result of diffusion?
a)
F
b)
G
c)
H
d)
J
16.
The picture  is an example of _________________.
a)
isotonic
b)
diffusion
c)
osmosis
d)
active transport
17.
Where is there a high concentration of bbq smoke?
a)
In the bbq pit
b)
In the house
c)
Two streets over
d)
In the atmosphere
18.
What does “high concentration area” mean?
a)
Spread out
b)
Tightly packed together
c)
Uncrowded
d)
Spacious
19.
Diffusion is the movement of molecules from an area of _____ concentration to an ______ concentration
a)
High, low
b)
Low, high
c)
Low, low,
d)
High, high
20.
Where is there a low concentration of dye?
a)
at the bottom of cup
b)
in the color
c)
at the top of cup 
d)
no concenteraion gradient
21.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
22.

What is DIFFUSION?

a)
b)
c)
d)
23.

The pressure inside the balloon will :

a)

Decrease

b)

Increase

c)

Remain the same

d)

Not enough information to formulate an answer

24.

Gas pressure is caused by

a)

Gas molecules heating up

b)

Gas molecules reacting with other gas molecules

c)

Gas molecules hitting the walls of a container

d)

Gas molecules hitting other gas molecules

25.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
26.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

27.
What decreases as you go up in the atmosphere?
a)
Altitude
b)
Atmosphere
c)
Meteors
d)
Air Pressure
28.

How do you Calculate Pressure

a)

Force(N)/Area(m2)

b)

Force(kg)/Area(mi2)

c)

Area(m2)/Force(N)

29.

Why won't you sink in mud if you wear boots?

a)

Because the surface area is larger creating less pressure.

b)

Has air in it to keep you floating.

c)

Because the mud won't want you.

30.

What is pressure?

a)

The amount of force exerted on a surface

b)

The surface area of an object

c)

The weight of an object

31.

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

a)

The design of this structure is stronger.

b)

Water pressure increases with depth.

c)

The cost of construction is lower.

d)

Water pressure acts uniformly in all directions.

32.

Watch the tyres of tractor rolling. Rear tyres are broader because

a)

It looks good.

b)

Broader tyres lessen the muscular Force required.

c)

Broader tyres lessen the pressure on ground.

d)

Broader tyres lessen the friction on ground.

33.
The amount of force pushing on an area is the definition of....
a)
Fluid
b)
Viscosity
c)
Barometer
d)
Pressure
34.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
 A calf with big feet
d)
A calf with small feet
35.
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
36.

Pressure can be exerted by solids, liquids and gases.

a)

TRUE

b)

FALSE

37.

This is an example of the everyday application of pressure in:

a)

Solids

b)

Liquids

c)

Gases

d)

Plasma

38.

The pressure inside the syringe will decrease if we move the plunger in:

a)

Direction A

b)

Direction B

c)

We don't have to move the plunger as the pressure will change on its own.

d)

None of the above answers.

39.

The reason gases can be compressed is because:

a)

The particles are very close together.

b)

The particles are merely vibrating.

c)

The particles are unable to move.

d)

The particles are very far apart.

40.
What is the instrument that measures air pressure called?
a)
Graduated cylinder
b)
Barometer
c)
Force scale
d)
Anemometer
41.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
42.

What is Friction?

a)

Push

b)

Pull

c)

Both (A) and (B)

d)

None of these

43.

Which of the following are the Effect of Force?

a)

Move a Stationary Object

b)

Stop a Moving Object

c)

Change the direction of a moving object

d)

All of These

e)

None of these

44.

The SI (Standard Unit) of Force is (a)   .

45.

What type of force is it.

a)- A batsman hitting a six.

a)

Push

b)

Hit

46.

What is resultant force?

a)

Total Force applied

b)

Force applied from the left side

c)

Force applied from the right side

d)

Force applied from the top

47.

In a game of tug-of-war A, B, C are on the left side while X, Y, Z are on the right side. A applies a force of 5N, B applies 10N, C applies 7.5N and X apples 10N, Y applies 15N and Z applies 2.5N. Who won the game?

a)

A, B, C

b)

X, Y, Z

c)

It was a tie

48.

Which of the following are type of Force?

a)

Contact Forces

b)

Non-Contact Forces

c)

Muscular Forces

d)

Rational Forces

49.

If the boy on left side is applying a force of 40N while boy on right side applies a force of 30N, which side will the box move.

a)

Right Side

b)

Left Side

c)

It will not move

d)

None of the above

50.

Which of the following are the types of Contact Forces?

a)

Muscular Forces

b)

Mechanical Forces

c)

Frictional Forces

d)

Gravitational Forces

51.

Which of the following are Non-Contact forces?

a)

Electrostatic Force

b)

Friction

c)

Magnetic Force

d)

Gravity

52.

Define Contact Forces.

(a)  

53.

Define Non-Contact Forces

(a)  

54.

What will happen if we bring North Pole of a magnet near the south pole of a magnet?

a)

It will attract

b)

It will repel

c)

Nothing will happen

55.

What will happen if we bring South Pole of a magnet near the south pole of a magnet?

a)

It will attract

b)

It will repel

c)

Nothing will happen

56.

What is Pressure?

(a)  

57.

How can we measure Pressure?

a)

F/M2 (Force/Area)

b)

Pascal (P)

c)

Newton per square

d)

All (A), (B), (C) are correct

e)

None of these

58.

Object attract towards Earth due to ___________.

a)

Muscular Force

b)

Gravity

c)

Friction

d)

Magnetic Force

59.

Which one is the odd one out.

a)

Spacesuit

b)

Drinking Straw

c)

Lubricants

d)

Syringe

60.

What happens to Atmospheric pressure when the height increases?

a)

It decreases

b)

It increases

c)

It remains the same

d)

None of these

61.

What is the instrument used to measure Atmospheric Pressure(atm)

a)

Barometer

b)

Thermometer

c)

Richter Scale

d)

Hygrometer

62.
Fluids can also include__ and__. 
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
63.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
64.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
65.
Pressure decreases when the surface area over which a force is applied increases
a)
True
b)
False
66.
Atmospheric pressure increases as you move towards lower elevations and decreases as you move into higher elevations.
a)
True
b)
False
67.
Look at the pressure triangle. How do we calculate the area?
a)
f ÷ a
b)
f x p
c)
p x f
d)
f ÷ p
68.
What is the instrument that measures air pressure called?
a)
Graduated cylinder
b)
Barometer
c)
Force scale
d)
Anemometer
69.
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
70.
If the horse reared up on 2 legs what effect would it have on the pressure?
a)
it will exert half the pressure it did before
b)
it will exert the same pressure it did before
c)
it will exert twice the pressure it did before
d)
it will exert four times the pressure it did before
71.
Army tank tracks are useful for travelling through the mud because..
a)
they decrease the force the vehicle exerts on the ground
b)
they increase the force the vehicle exerts on the ground
c)
they decrease the pressure the vehicle exerts on the ground
d)
they increase the pressure the vehicle exerts on the ground
72.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
 A calf with big feet
d)
A calf with small feet
73.
Where is pressure the greatest on the dam?
a)
D
b)
C
c)
B
d)
A
74.
What does pressure measure?
a)
Strength
b)
Force exerted on a given area of surface
75.

name the instrument used to measure atmospheric pressure ?

(a)  

76.

In Fig two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?

a)

Magnitude of force applied by A is greater than that of B

b)

Magnitude of force applied by A is smaller than that of B.

c)

Net force on the block is towards A.

d)

Magnitude of force applied by A is equal to that of B.

77.

During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is___________

a)

force of gravity

b)

electrostatic force.

c)

force of friction.

d)

magnetic force

78.

A brick is kept in three different ways on a table as shown in Fig. The pressure exerted by the brick on the table will be

a)

maximum in position A

b)

maximum in position B

c)

maximum in position C

d)

equal in all cases.

79.

which force is non contact force

a)

gravitational

b)

magnetic

c)

electrostatic

d)

all of the above

80.

write two states of motion .

4 lines
81.

what kind of force is Friction

(a)  

82.

moment of a force =

a)

force x distance between forces

b)

mass x acceleration

c)

force x perpendicular distance from pivot

d)

mass x perpendicular distance to pivot

83.

The principle of moments states that for a body to be in rotational (a)   , the sum of the clockwise moments about any point must be equal to the sum of the anticlockwise moments about that same point.

84.

The weight of an object is said to act from the _________

a)

centre of mass

b)

centre of gravity

c)

top

d)

bottom

85.

Select the correct definition for the principle of moments

a)

Sum clockwise = sum anticlockwise

b)

For a system in equilibrium the sum of clockwise moments = the sum of anticlockwise moments.

c)

Moment = force x distance in the direction of the force.

86.

What is a moment?

a)

A force

b)

The turning effect of a force

c)

A pair of forces

d)

A force caused by a pivot

87.

What distance must be used when calculating a moment?

a)

The distance between the force and the pivot

b)

The perpendicular distance between the line of action of the force and the axis of rotation

c)

The perpendicular distance between the the force and the centre of mass

d)

The perpendicular distance between the two forces

88.

What is the unit of a moment?

(a)  

89.

What is an object's centre of gravity?

a)

The single point through which the object's entire weight can be said to act

b)

The single point at the centre of the object

c)

The closest point to the ground

d)

mass x gravitational field strength

90.

Calculate the tension in the cable.

a)

40

b)

40.5

c)

45

d)

35

91.
What is the moment acting on the seesaw?
a)
1.6Nm
b)
15Nm
c)
16N
d)
4Nm
92.
A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?
a)
The larger person moving further away from the center.
b)
Moving the smaller person closer to the center.
c)
Moving the smaller person further from the center.
d)
Making the larger person do nothing.
93.
The easiest way to open a heavy door  is by applying the force
a)
Near the hinges
b)
In the middle of the door
c)
At the edge of the door far from the hinges
d)
At the top of the door
94.

Assuming the system is in equilibrium, calculate the missing distance d

a)

3.4 m

b)

2.8 m

c)

4.4 m

d)

1.6 m

95.

What is the size of the moment shown by the black arrow?

a)

30 Nm

b)

36 Nm

c)

40 Nm

d)

60 Nm

96.

The diagram shows a beam. Without any weights, the beam balances at its centre.

Three weights are hung as shown.

At which point does a load of 2 N balance the beam?

a)

A

b)

B

c)

C

d)

D

97.
Equilibrium means _________
a)
being at rest
b)
traveling at light speed
c)
balance
d)
pushing or pulling
98.

The figure below shows a man lifting a heavy rock using a steel bar. He pushes downwards on the end of the bar with a force F.


Which pivot positions allows the force F to be as small as possible?

a)

A

b)

B

c)

C

d)

D

99.

The moment of a force causes an object to

a)

move forward

b)

move backward

c)

stop moving

d)

turn about a fixed point

100.

Moment can be calculated using the equation:

a)

M = F × d

b)

M = F / d

c)

M = F2 × d

d)

M = F / d2

101.

The SI unit of moment of force is –

a)

m

b)

N

c)

kgf

d)

Nm

102.

When an object is in equilibrium, which equation is true?

a)

Clockwise moment = anticlockwise moment

b)

Clockwise moment + anticlockwise moment = 0

c)

Clockwise moment / anticlockwise moment = 0

d)

Clockwise moment + anticlockwise moment = resultant force

103.
The easiest way to open a heavy door  is by applying the force
a)
Near the hinges
b)
In the middle of the door
c)
At the edge of the door far from the hinges
d)
At the top of the door
104.

The figure below shows a man lifting a heavy rock using a steel bar. He pushes downwards on the end of the bar with a force F.


Which pivot positions allows the force F to be as small as possible?

a)

A

b)

B

c)

C

d)

D

105.

A boy of weight 600N sits on the see-saw as shown at a distance of 1.5m from the pivot. What is the force F required at the other end to balance the see-saw?

a)

450 N

b)

350 N

c)

4.5 N

d)

200 N

106.

What do we call forces applied to anything that turns?

a)

Minute

b)

Moment

c)

Minimum

d)

Monument

107.

What is the size of the moment shown by the black arrow?

a)

30 Nm

b)

36 Nm

c)

40 Nm

d)

60 Nm

108.

Moment (Nm) =

a)

Force (N) x distance (m)

b)

Angular Force (N°) x distance (m)

c)

Work done (J)

d)

Force (N) x distance (s)

109.
What is the moment produced by the 15 N?
a)
15 Nm (clockwise)
b)
150 Nm (anti - clockwise)
c)
1.5 Nm (anti - clockwise)
d)
0.15 Nm (clockwise)
110.

State the principle of moments.

a)

When a system is in equilibrium, the sum of the total clockwise moment is equal to the sum of the total anti-clockwise moment about the same pivot.

b)

When a system is in equilibrium, the sum of the total clockwise moment is greater the sum of the total anti-clockwise moment about the same pivot.

c)

When a system is in equilibrium, the sum of the total clockwise moment is less than the sum of the total anti-clockwise moment about the same pivot.

d)

When a system is in equilibrium, the sum of the total clockwise moment is equal to the sum of the total anti-clockwise moment about the different pivot.

111.

Find the Force

a)

Force = 6N

b)

Force = 10N

c)

Force = 16N

d)

Force = 20N

112.
True or False:  The density of a specific type of material never changes.  
a)
True
b)
False
113.
An object with which of the following densities will float on water?
a)
0.7 g/cm3
b)
1.2 g/cm3
c)
3.5 g/cm3
d)
11.4 g/cm3
114.
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
115.
A student knows the mass of an object. What other variable does the student need to know to calculate the object's density?
a)
Color
b)
Weight
c)
Volume
d)
Length
116.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
117.
What units are used to measure mass?
a)
g
b)
cm3
c)
g/cm3
d)
cm3/g
118.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
119.

If an object has a density of 0.6 g/mL and you put it into water, will it sink or float?

a)

Sink

b)

Float

120.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
121.

Which units of measurement are used for volume?

a)

gram / centimetre3

b)

centimetre3

c)

gram / millilitre3

d)

millilitre

122.
What is the volume of 150 grams of lead if it has a density of 11.3 g/cm3?
a)
13.3 g
b)
13.3 cm3
c)
.075 g
d)
1695 cm3
123.
Find the volume of this piece of brass.  
a)
50 g
b)
10 cm
c)
6 cm3
d)
12 cm3
124.

The density of this material is 2 g/cm3.

There are 24 cm cubes. Find the total mass.

a)

12 grams

b)

48 grams

c)

12 g/cm3

d)

48 g/cm3

125.
Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.
a)
6 cm3
b)
12 g/cm3
c)
128 g/cm3
d)
8  g/cm3
126.
A diamond has a mass of 1.2 g.  If diamond has a density of 3.51 g/mL, what is the volume of the diamond.
a)
0.34 mL
b)
2.9 g/mL
c)
2.3 mL
d)
4.2 mL
127.
The upward force exerted by a liquid on an object immersed in or floating on the liquid
a)
pressure
b)
buoyant force
c)
normal force
d)
gravity
128.
When the weight of an object is greater than the buoyant force, the object will ... 
a)
Sink
b)
Float 
c)
Expand
d)
Shrink
129.
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
130.

True or False: Buoyancy is an upwards force measured in Newtons.

a)

True

b)

False

131.
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 

Similar Resources on Wayground

Phy Sci Midterm

136 questions

Phy Sci Midterm

quiz

Worksheet

•

8th Grade

КАРБОНҚЫШҚЫЛДАРЫ

126 questions

КАРБОНҚЫШҚЫЛДАРЫ

quiz

Worksheet

•

7th Grade - University

6th Gr ACP Review

131 questions

6th Gr ACP Review

quiz

Worksheet

•

6th Grade

Tin học 8

130 questions

Tin học 8

quiz

Worksheet

•

8th Grade