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Science THUS FAR

Total questions: 183

Worksheet time: 3hrs 32mins

Name
Class
Date
1.

Sunlight provides what type of energy?

a)

chemical energy

b)

thermal energy

c)

radiant energy

2.

The reactants to photosynthesis are...

a)

glucose and oxygen

b)

carbon dioxide and water

3.

The products of photosynthesis are...

a)

glucose and oxygen

b)

carbon dioxide and water

4.

What part of the plant absorbs carbon dioxide?

a)

stomata of leaves

b)

the roots

c)

the flower

5.

What gives the leaf its green color and absorbs sunlight?

a)

stomata

b)

chlorophyll

c)

roots

d)

flowers

6.

The process of photosynthesis transforms _______ energy to _______ energy

a)

radiant : thermal

b)

thermal : chemical

c)

radiant : chemical

d)

chemical : radiant

7.

What is the source of the water as a reactant to photosynthesis?

a)

the soil

b)

the air

c)

the clouds

8.

What is the source of carbon dioxide as a reactant in photosynthesis?

a)

the soil

b)

the air

c)

the clouds

9.

What acts as the radiant energy collector in a plant?

a)

leaves

b)

flowers

c)

roots

10.

How many water molecules are used as a reactant in photosynthesis?

a)

6

b)

12

c)

18

11.

Photosynthesis occurs in:

a)

Mitochondria

b)

Chloroplasts

c)

Humans

d)

Animals

12.

What are the reactants in Photosynthesis?

a)

Sun, CO2, glucose

b)

glucose and oxygen

c)

sun, carbon dioxide, water

d)

water, glucose

13.

The process in which plant cells make energy

a)

Exothermic

b)

Endothermic

c)

Cellular Respiration

d)

Photosynthesis

14.

In cellular respiration, carbon starts out in the glucose molecule, but ends up in a(n)

a)

oxygen molecule

b)

water molecule

c)

CO2 molecule

d)

C6H12O2 molecule

15.

In photosynthesis, what kind of molecule does hydrogen start in?

a)

water

b)

oxygen

c)

glucose

d)

carbon dioxide

16.

In what process does ATP get created?

a)

photosynthesis

b)

cellular respiration

c)

radiation

d)

chemical

17.

How do humans get glucose so they can live?

a)

breathe it in

b)

photosynthesis

c)

eat food

d)

drink liquids

18.

Mitochondria and Chloroplasts are:

a)

organelles

b)

cells

c)

only in humans

d)

only in plants

19.

Cellular respiration happens

a)

only in plants

b)

only in animals

c)

only in humans and animals

d)

in plants and animals

20.

The products of cellular respiration are

a)

air and water

b)

carbon dioxide, water, and ATP

c)

glucose and carbon dioxide

d)

ATP, glucose, and oxygen

21.

For photosynthesis, a plant needs water, sun, and...

a)

oxygen

b)

carbon dioxide

c)

glucose

d)

mitochondria

22.

For humans to live, we need energy. What is the name of the energy that the body makes in cellular respiration?

a)

sugar

b)

glucose

c)

ATP

d)

fructose

23.

What is a product of photosynthesis AND a reactant for cellular respiration?

a)

oxygen

b)

water

c)

carbon dioxide

d)

Doctor Pepper

24.

The sun gives us what type of energy?

a)

chemical

b)

radiation

c)

potential

d)

kinetic

25.

Cellular respiration happens in the

a)

plants only

b)

animals only

c)

chloroplasts

d)

mitochondria

26.

What are the raw materials needed by photosynthesis? Pick 2.

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

27.

How many molecules of carbon dioxide are in the photosynthesis equation?

a)

1 molecule

b)

2 molecules

c)

6 molecules

d)

12 molecules

28.

How many molecules of water are in the photosynthesis equation?

a)

1 molecule

b)

2 molecules

c)

6 molecules

d)

12 molecules

29.

What are the products made by photosynthesis? Pick 2.

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

30.

What side of the photosynthesis equation are the products of photosynthesis?

a)

right side

b)

left side

c)

over the arrow

31.

What side of the photosynthesis equation are the raw materials of photosynthesis?

a)

right side

b)

left side

c)

over the arrow

32.

How many molecules of glucose are in the photosynthesis equation?

a)

1 molecule

b)

2 molecules

c)

6 molecules

d)

12 molecules

33.

How many molecules of oxygen are in the photosynthesis equation?

a)

1 molecule

b)

2 molecules

c)

6 molecules

d)

12 molecules

34.

Glucose is a type of sugar. It is the "food" that is made during photosynthesis.

a)

True

b)

False

35.

Look at the image. What does the arrow mean?

a)

equals

b)

yields

c)

makes

d)

This direction!

36.

Light energy is not needed for the photosynthesis chemical reaction to take place.

a)

True

b)

False

37.

When a plant cell breaks down the sugar that it makes, it releases the energy that it contains.

a)

True

b)

False

38.

How does a plant use energy in glucose?

a)

It is ONLY stored.

b)

It is ONLY used right away.

c)

It is BOTH stored and used right away.

39.

Which product of photosynthesis is released into the air?

a)

carbon dioxide

b)

oxygen

c)

water vapor

d)

glucose

40.

What is CO2?

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

41.

What is O2?

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

42.

What is H2O?

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

43.

What is C6H12O6?

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

44.

The amount that gravitational force acting on you is called

a)

mass

b)

volume

c)

density

d)

weight

45.

Which statement is correct about the mass of the chair on the earth and moon?

a)

mass is greater on the moon

b)

mass is less on the moon but not equals to zero

c)

mass is zero on the moon

d)

mass is the same on the moon

46.

What are the correct units for force and for weight?

a)

kilogram , kilogram

b)

Newton , Newton

c)

kilogram , Newton

d)

Newton , kilogram

47.

If an object mass =30 kg on the Earth, what would be it's weight on Earth?

a)

30 N

b)

300 kg

c)

3000N

d)

300 N

48.

A child has a mass of 30 kg on Earth. If the gravitational field strength on Moon is one sixth that of the Earth what is the mass of the child on Moon?

a)

30 Kg

b)

180 Kg

c)

5 Kg

d)

0 Kg

49.

If the weight of a body on the Earth's surface is 600 N, what would be its weight on the Moon? (the gravitational field strength on Earth is 6 times the gravitational field strength on the Moon)

a)

3600 N

b)

100 N

c)

600 N

d)

6000 N

50.

The gravitational field strength on Jupiter is about 2 times the gravitational field strength on Earth. If an object has a mass of 50 kg and a weight of 500 N on Earth, what would be the object's approximate mass and weight on Jupiter?

a)

50 kg and 500 N

b)

100 kg and 500 N

c)

50 kg and 1000 N

d)

100 kg and 1000 N

51.

A parachutist inside an aeroplane has a mass of 70 kg.

What is his mass after he has jumped from the aeroplane?

a)

0 kg

b)

between 0 kg and 70 kg

c)

70 kg

d)

greater than 70 kg

52.

A 1 kg sample of wood is stored in a laboratory. In a different laboratory, in the same town, there is a 1 kg sample of iron.


Which quantity must these two samples always have in common?

a)

the same density

b)

the same temperature

c)

the same volume

d)

the same weight

53.

A large bag of feathers and a steel block balance each other on some scales.

What does this show about the masses and the weights of the bag of feathers and the steel block?

a)

It shows that the masses are equal and the weights are equal.

b)

It shows that the weights are equal, but the masses might be different.

c)

It shows that the masses might be different and the weights might be different.

d)

It shows that the masses are equal, but the weights might be different.

54.

The weight of an object is the (a)   of gravity pulling down on it.

55.

Weight is measured in?

a)

Darwins

b)

Newtons

c)

Joules

d)

Brownes

56.

Weight depends on the ______of an object and the force of gravity.

a)

mass

b)

size

c)

strength

d)

wieght

57.

Select all the answers which best describe weight. (2 correct)

a)

It is the amount of atoms in an object

b)

It is a force

c)

It is caused by gravity acting on the object

d)

It is measured in Kg

58.

On Earth the __________ field strength is 10 N/kg.

a)

kinetic

b)

magnetic

c)

gravitational

d)

elastic

59.

Look at the image. What does 'W' stand for and how is it measured?

a)

Weight and in Newtons per Kg (N/Kg)

b)

Weight and in Kilograms (Kg)

c)

Weight and in Newtons (N)

60.

Look at the image. What does 'g' stand for and how is it measured?

a)

Gravitational field strength and in Newtons per Kg (N/Kg)

b)

Gravitational field strength and in Kilograms (Kg)

c)

Gravitational field strength and in Newtons (N)

61.

Look at the image. Which equation would I use to calculate Weight?

a)

W = g / m

b)

W = m x g

c)

W = m / g

62.

A cat on Earth has a mass of 2 kg. What is it's weight?

a)

2N

b)

20kg

c)

2kg

d)

20N

63.

A cat travelled to Mars, it's mass is still 2Kg. The gravitational strength is 3.7 N/Kg.

What is it's weight on Mars?

a)

7.4N

b)

74kg

c)

7.4g

d)

7.4N/Kg

64.

A toolbox on Earth has a weight of 300N.

Calculate the mass.

a)

3000kg

b)

30kg

c)

30g

d)

30N

65.

A dog weighs 180N. What does the dog weigh on Earth?

a)

18N

b)

18kg

c)

18N/kg

d)

180N

66.

An ipad with a mass 0.5Kg was sent to Jupiter. The gravitational strength on Jupiter is 23.64N/Kg.

Calculate the weight of the ipad.

a)

11.82 N/Kg

b)

11.82N

c)

47.28N

d)

47.28N/Kg

67.

On Neptune a bin weighs 112.5N and has a mass of 10Kg.

Calculate the gravitational field strength.

a)

1125N/Kg

b)

11.25N/Kg

c)

1125N

d)

11.25N

68.

What is mass?

a)

It is a force

b)

The number of atoms in an object

c)

It is measured in Newtons

d)

How much somethings weighs

69.

A push or pull best describes the term

a)

Wave

b)

Force

c)

Momentum

d)

Potential Energy

70.

This term is defined as forces that are equal in magnitude or strength.

a)

Unbalanced Forces

b)

Forces

c)

Balanced Forces

d)

Net force

71.

This term is defined as forces that are not equal in magnitude or strength.

a)

Unbalanced Forces

b)

Forces

c)

Balanced Forces

d)

Friction

72.

The force that naturally pulls objects to the center of earth is called

a)

Electromotive Force

b)

Strong Force

c)

Magnitude

d)

Force of Gravity

73.

What is the net force acting on this object?

a)

15N to the right

b)

10 grams to the left

c)

5N to the right

d)

5N to the left

74.

Which of the following is not a type of contact force?

a)

Applied Force

b)

Friction

c)

Magnetic Force

d)

Air Resistance

75.

Which of the following is not a type of a Non-Contact Force?

a)

Normal Force

b)

Magnetic Force

c)

Electric Force

d)

Gravity

76.

Which of the following forces opposes motion?

a)

Friction

b)

Air Resistance

c)

Both friction and air resistance

d)

Neither friction or air resistance

77.

If you apply an unbalanced force to an object at rest, what will happen to that object?

a)

the object will remain at rest.

b)

the object will move.

c)

The object will stay.

d)

None of the above.

78.

What is the name of the units that we measure force in?

a)

Einsteins

b)

Newtons

c)

Kilograms

d)

Metres

79.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
80.

A smoother surface will have ______ friction than a rough surface.

a)

More

b)

Less

c)

The same amount

81.

What are the two factors that effect gravitational force?

a)

Mass and Weight

b)

Distance and Time

c)

Mass and Distance

82.

The greater the distance between two objects, the _________ the gravitational force.

a)

Stronger

b)

Weaker

83.

The gravitational field on the moon is 1.6 N/kg. A ball has a mass of 2 kg. What is the weight of the ball on the moon?

a)

0.8 N

b)

3.2 N

c)

1.25 N

d)

0 N

84.

Which planet has the larget graviational field strength?

a)

Earth

b)

Venus

c)

Mars

d)

Jupiter

85.

What is the name of the forces that act on object floating in water?

a)

Upthrust

b)

Air resistance

c)

Drag

86.

An apple has a mass of 0.1 kg. If it's weight on the moon is 0.16 N, what is the strength of gravity on the moon?

a)

0.16 / 0.1 = 1.6 N/kg

b)

0.1 /0.16 = 0.63 N/kg

c)

0.1 x 0.16 = 0.02 Nkg

87.

What is 300 g converted to kg?

a)

0.3

b)

300,000

c)

30

d)

3

88.

When a material is stretched, the atoms in the material get...

a)

closer together

b)

further apart

c)

stay the same

89.

Hooke's law states that as more force is added to a spring the extension of the spring...

a)

increases

b)

descreases

c)

stays the same

90.

Masses were added to a spring to measure its extension. In this experiment the independent variable (that you change) is...

a)

The number of masses

b)

the extension of the spring

c)

the type of spring

d)

the original length of the spring before masses were added

91.

Masses were added to a spring to measure its extension. In this experiment the dependent variable (that you measure) is...

a)

The number of masses

b)

the extension of the spring

c)

the type of spring

d)

the original length of the spring before masses were added

92.

Masses were added to a spring to measure its extension. In this experiment the a control variable (that you keep the same) is...

a)

The number of masses

b)

the extension of the spring

c)

the type of spring

93.

Mass and Weight are the same measurement.

a)

True

b)

False

94.

Mass is a measure of _____.

a)

The matter inside an object.

b)

The forces outside the object.

c)

inertia

d)

the object's desire to keep on doing what it is doing.

95.

The proper units for measuring mass is _____.

a)

Newtons (N)

b)

grams (g)

c)

kilograms (kg)

96.

Mass is measured using a(n) _____.

a)

Scale

b)

Electronic Balance

97.

Which of the following is used to measure mass?

a)
b)
98.

An object's mass does not depend on its location.

a)

True

b)

False

99.

Weight is an outside force that acts on an object.

a)

True

b)

False

100.

In science class weight is measured in _____.

a)

Newtons (N)

b)

grams (g)

c)

kilograms (kg)

d)

pounds (lbs)

101.

Different locations have different gravitational field strengths (g).

a)

True

b)

False

102.

An object's weight can change if you move it to a different location.

a)

True

b)

False

103.

Mass and weight are related?

a)

True

b)

False

104.

Gravitational Field Strength (g) is measured in _____.

a)

kilograms (kg)

b)

Newtons (N)

c)

grams (g)

d)

Newtons per kilogram (N/kg)

105.

The gravitational field strength (g) at Earth's surface is about _____ N/kg

a)

1.25

b)

10

c)

26

d)

gravitational field strength does not change

106.

Weight = g x mass

a)

True

b)

False

107.

50 kg is about how many Newtons (N) at Earth's surface?

W=mgW=mg  

a)

5

b)

50

c)

500

d)

5000

108.

100 g is about how many Newtons (N) at Earth's surface?

W=mgW=mg  

a)

1

b)

10

c)

100

d)

1000

109.

About how many grams (g) are in a 70N weight located at Earth's surface?

W = mgW\ =\ mg  

a)

7

b)

70

c)

700

d)

7000

110.

A 45 kg girl will have _____ mass on the moon.

a)

more

b)

less

c)

the same

111.
Hooke's Law describes the behaviour of which kind of material under tension?
a)
plastic
b)
metals only
c)
elastic
d)
non-metals only
112.
Hooke's Law fails when a material reaches:
a)
breakdown
b)
its elastic limit
c)
end of its tether
d)
fracture stress
113.
Hooke's law describes how as the force increases the rate of increase of ............ is the same.
a)
the length of a spring
b)
gravity
c)
the extension of a spring
114.
A graph of extension against force for an elastic material is:
a)
A downward curve
b)
An upward curve
c)
A straight line from any point on the x and y axis
d)
A straight line from the origin
115.
If extension = Stretched length - original length. What is the extension of spring D.
a)
1mm
b)
2mm
c)
3mm
d)
0mm
116.
A stiff material has a:
a)
high spring constant
b)
low spring constant
c)
spring constant of any value
d)
spring constant which is difficult to predict
117.
A spring has a spring constant of 5N/cm.  What is its extension when loaded with 15N?
a)
4cm
b)
5cm
c)
3m
d)
3cm
118.

A force of 100N is applied to a spring with a spring constant of 2N/m. How far will the spring extend?

a)

200m

b)

5cm

c)

50m

d)

0.02m

119.

How far will a bungee rope extend if it has a spring constant of 5N/m and a force of 20N is applied to the rope?

a)

100m

b)

100cm

c)

4m

d)

40m

120.

What is the best description of the relationship shown in this graph?

a)

In this graph, the relationship between force and extension is linear.

b)

In this graph, the relationship between force and extension is non-linear.

c)

In this graph, the relationship between force and extension is directly proportional.

d)

In this graph, there is no relationship between force and extension.

121.

What is the best description of the relationship shown in this graph?

a)

In this graph, the relationship between force and extension is linear.

b)

In this graph, the relationship between force and extension is non-linear.

c)

In this graph, the relationship between force and extension is directly proportional.

d)

In this graph, there is no relationship between force and extension.

122.

What is the best description of the relationship shown in this graph?

a)

In this graph, the relationship between force and extension is linear.

b)

In this graph, the relationship between force and extension is non-linear.

c)

In this graph, the relationship between force and extension is directly proportional.

d)

In this graph, there is no relationship between force and extension.

123.

What is the best description for this graph? Tick all the statements you agree with:

a)

The start of this graphs shows that force and extension are non-linear.

b)

The start of this graphs shows that force and extension are directly proportional.

c)

After approximately 4N, force and extension are non-linear.

d)

After approximately 4N, force and extension are directly proportional.

124.

The graph shows the relationship between force and extension as a spring is extended. What is the name of point A?

a)

Point A is the optimum force.

b)

Point A is the limit of extension.

c)

Point A is the limit of force.

d)

Point A is the limit of proportionality

125.

The graph shows the relationship between force and extension as a spring is extended. What is another name for point A?

a)

Point A is the elastic limit

b)

Point A is the elastic summet

c)

Point A is the plastic limit

d)

Point A is the extension limit

126.

If a spring is extended beyonds it elastic limit, what two things does this mean for the spring?

a)

The spring will no longer return to its original length.

b)

The spring will no longer obey Hookes Law.

c)

The spring will no longer extend.

d)

The spring will bounce back to its original length.

127.

A weight is placed on a spring. Which distance, A or B, represents the extension of the spring?

a)

'A' is the extension

b)

'B' is the extension

128.

The data in the graph represents the extension of a spring. Calculate the spring constant using the equation:

Spring constant = Force ÷ Extension

a)

2 N/m

b)

0.5 N/m

c)

60 N/m

d)

20 N/m

129.

[Level 5+ Question] Which out of springs K, L or M from the graph have the highest spring constant.

a)

K

b)

L

c)

M

130.
If F is force, k is spring constant and x is extension, Hooke's Law tells us that:
a)
F=k/x
b)
x=Fk
c)
k=Fx
d)
F=kx
131.

What does Hooke's Law state about the force in a spring?

a)

The force is inversely proportional to the displacement.

b)

The force is directly proportional to the displacement.

c)

The force is independent of the displacement.

d)

The force is proportional to the square of the displacement.

132.

What is the formula for calculating the elastic potential energy stored in a stretched or compressed spring?

a)

PE=12kx2PE = \frac{1}{2} k x^2

b)

PE=kx2PE = k x^2

c)

PE=12kxPE = \frac{1}{2} k x

d)

PE=kxPE = k x

133.

If a spring has a spring constant of 300 N/m and is stretched by 2 meters, what is the force exerted by the spring?

a)

150 N

b)

300 N

c)

600 N

d)

1200 N

134.

What is the spring constant if a force of 100 N stretches a spring by 25 cm?

a)

250 N/m

b)

400 N/m

c)

4 N/m

d)

40 N/m

135.

Which of the following is a correct unit for measuring the spring constant?

a)

Newtons (N)

b)

Meters (m)

c)

Newtons per meter (N/m)

d)

Joules (J)

136.

How much work is done in stretching a spring with a spring constant of 200 N/m by 0.5 meters?

a)

25 Joules

b)

50 Joules

c)

100 Joules

d)

200 Joules

137.

What is the relationship between force and displacement in Hooke's Law?

a)

Quadratic

b)

Linear

c)

Inverse

d)

Exponential

138.

If the displacement of a spring doubles, how does the force change according to Hooke's Law?

a)

It halves.

b)

It remains the same.

c)

It doubles.

d)

It quadruples.

139.

What does the constant kk in the formula F=kxF = kx represent?

a)

Displacement

b)

Force

c)

Spring constant

d)

Mass

140.

Calculate the elastic potential energy of a spring with a spring constant of 50 N/m stretched by 3 meters.

a)

225 Joules

b)

75 Joules

c)

450 Joules

d)

150 Joules

141.

What is the primary application of Hooke's Law?

a)

To calculate the speed of an object

b)

To determine the force in a spring

c)

To measure temperature changes in materials

d)

To find the volume of solids

142.

If a spring with a spring constant of 100 N/m is compressed by 10 cm, how much force is applied?

a)

1 N

b)

10 N

c)

100 N

d)

1000 N

143.

What happens to the elastic potential energy as the displacement of a spring increases?

a)

It decreases.

b)

It remains constant.

c)

It increases.

d)

It first increases, then decreases.

144.

Using Hooke's Law, calculate the displacement when a force of 80 N is applied to a spring with a spring constant of 160 N/m.

a)

0.5 m

b)

1 m

c)

1.5 m

d)

2 m

145.

Which of the following best describes the work done in stretching a spring?

a)

It is equal to the force applied multiplied by the displacement.

b)

It is half the product of the force applied and the displacement.

c)

It is the product of the spring constant and the square of the displacement, divided by two.

d)

It is the square of the force applied divided by the spring constant.

146.
A spring has a spring constant of 330 N/m.  How far is the spring compressed if 150 N of force are used?
a)
2.2 m
b)
0.0014 m
c)
5.0 m
d)
0.45 m
147.
A force of 470 N is applied to stretch a spring which has a spring constant, k=1100 N/m.  How much does the spring stretch past its free length?
a)
0.214 m
b)
2.34 m
c)
0.427 m
d)
5.17 X 10^5 m
148.
What force should be applied to compress a spring by 0.013 m if its spring constant is k = 1900 N/m?
a)
1880 N
b)
24.7 N
c)
1900 N
d)
0.127 N
149.
Which of the following is a true statement regarding springs?
a)
The higher the value of the spring constant, the stiffer the spring.  
b)
In Hooke's law, the force exerted by the spring acts in the same direction as displacement.  
c)
Springs are designed to provide unpredictable variations in force.  
d)
The force exerted by a spring has a quadratic relationship with the displacement form equilibrium.  
150.
What Quantity can you calculate from the graph and give the magnitude of that quantity.  
a)
distance 4.5 m
b)
Force 15 N
c)
spring constant 20 N/m
d)
spring constant 200 N/m
151.
Hooke's Law describes the behaviour of which kind of material under tension?
a)
plastic
b)
metals only
c)
elastic
d)
non-metals only
152.
If F is force, k is spring constant and x is extension, Hooke's Law tells us that:
a)
F=k/x
b)
x=Fk
c)
k=Fx
d)
F=kx
153.

What is the best description of the relationship shown in this graph?

a)

In this graph, the relationship between force and extension is linear.

b)

In this graph, the relationship between force and extension is non-linear.

c)

In this graph, the relationship between force and extension is directly proportional.

d)

In this graph, there is no relationship between force and extension.

154.

Which statement most accurately represents Hooke's Law?

a)

a) The stretch of a spring is directly proportional to the force applied.

b)

b) The stretch of a spring is proportional to the number of coils.

c)

c) The stretch of a spring is inversely proportional to the force applied.

d)

d) Thickness of a spring wire is proportional to the force applied.

155.

For this spring, as the force increases, the extension increases proportionally. What would you expect to happen to the extension if the force was doubled?

a)

The extension would stay the same.

b)

The extension would double

c)

The extension would halve

156.
A graph of extension against force for an elastic material is:
a)
A downward curve
b)
An upward curve
c)
A straight line from any point on the x and y axis
d)
A straight line from the origin
157.
A 450 N object has a mass of _____ on earth
a)
4500 kg
b)
45 kg 
c)
4.5 kg 
d)
450 kg
158.

What happens when the stretching force on an elastic material is released?

a)

The material breaks.

b)

The material remains stretched out.

c)

It does nothing

d)

The material snaps back to its original shape.

159.

Spring constant is measured in

a)

N

b)

N/m

c)

m

160.

What is the best description for this graph? Tick all the statements you agree with:

a)

The start of this graphs shows that force and extension are non-linear.

b)

The start of this graphs shows that force and extension are directly proportional.

c)

After approximately 4N, force and extension are non-linear.

d)

After approximately 4N, force and extension are directly proportional.

161.

The graph shows the relationship between force and extension as a spring is extended. What is the name of point A?

a)

Point A is the optimum force.

b)

Point A is the limit of extension.

c)

Point A is the limit of force.

d)

Point A is the limit of proportionality

162.

If a spring is extended beyonds it elastic limit, what two things does this mean for the spring?

a)

The spring will no longer return to its original length.

b)

The spring will no longer obey Hookes Law.

c)

The spring will no longer extend.

d)

The spring will bounce back to its original length.

163.

[Level 5+ Question] Which out of springs K, L or M from the graph have the lowest spring constant.

a)

K

b)

L

c)

M

164.
Hooke's Law describes the behaviour of which kind of material under tension?
a)
plastic
b)
metals only
c)
elastic
d)
non-metals only
165.
If F is force, k is spring constant and x is extension, Hooke's Law tells us that:
a)
F=k/x
b)
x=Fk
c)
k=Fx
d)
F=kx
166.
Hooke's Law fails when a material reaches its:
a)
breakdown
b)
elastic limit
c)
end of tether
d)
fracture stress
167.

What is the best description of the relationship shown in this graph?

a)

In this graph, the relationship between force and extension is linear.

b)

In this graph, the relationship between force and extension is non-linear.

c)

In this graph, the relationship between force and extension is directly proportional.

d)

In this graph, there is no relationship between force and extension.

168.

The graph shows the relationship between force and extension as a spring is extended. What is another name for point A?

a)

Point A is the elastic limit

b)

Point A is the elastic summet

c)

Point A is the plastic limit

d)

Point A is the extension limit

169.

In which side of the graph does the spring obey Hooke's law?

a)

To the left of point A

b)

To the right of point A

170.

Which statement most accurately represents Hooke's Law?

a)

a) The stretch of a spring is directly proportional to the force applied.

b)

b) The stretch of a spring is proportional to the number of coils.

c)

c) The stretch of a spring is inversely proportional to the force applied.

d)

d) Thickness of a spring wire is proportional to the force applied.

171.

compression

a)

the process by which the shape of a rock changes because of stress

b)

the amount of force per square unit area on a given material

c)

stress that occurs when an object is stretched

d)

stress that occurs when an object is sqeezed

172.

deformation

a)

the process by which the shape of a rock changes.

b)

the amount of force per square unit area on a given material

c)

when an object starts to move to a certain direction.

173.

tension

a)

the process by which the shape of a rock changes because of stress

b)

the amount of force per square unit area on a given material

c)

stress that occurs when an object is stretched

d)

stress that occurs when an object is squeezed

174.

An unstretched spring becomes longer when a force is applied to it. Which word describes the additional length of the spring gains?

a)

Expansion

b)

Extension

c)

Stretched

175.

Select a logical prediction for the investigation.

a)

As the force applied to the spring increases, the extension of the spring will decrease.

b)

As the force applied to the spring increases, the extension of the spring will stay the same

c)

As the force applied to the spring increases, the extension of the spring will also increase.

176.

An elastic material can change shape when ________ is exerted on it.

a)

a force

b)

a moment

c)

an acceleration

177.

When you apply a force to an object, the object can change shape. If tension is applied, the object may be stretched. We say the object has been __________.

a)

compressed

b)

extended

c)

twisted

178.

When you apply a force to an object, the object can change shape. If a compression force is applied, the object may be squashed. We say the object has been __________.

a)

compressed

b)

extended

c)

twisted

179.

A deformation is a change in _________.

a)

Speed

b)

shape

c)

direction

180.

In the diagram, a force is used to stretch a spring. The spring is temporarily deformed when the force is applied. When the force is removed, the spring . . .

a)

returns to its original length.

b)

stays the same length.

181.

The _________ of an object is the increase in its length when it is stretched.

a)

compression

b)

extension

182.

The __________ of an object is the decrease in its length when it is squashed.

a)

compression

b)

extension

183.

For this spring, as the force increases, the extension increases proportionally. What would you expect to happen to the extension if the force was doubled?

a)

The extension would stay the same.

b)

The extension would double

c)

The extension would halve

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