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WorksheetsU6 2026 - Mechanics and Materials Revision for Mock
Total questions: 30
Worksheet time: 21mins
Which row in the table is not a reasonable estimate of the physical quantity described?
A
B
C
D
Which of the following is a vector quantity?
efficiency
kinetic energy
power
weight
The wind exerts a force of 225 N on a windsurfer. The windsurfer moves a distance of 450 m at an angle of 40° to the wind, as shown.
Which of the following expressions gives the work done, in joules, on the windsurfer?
225 × 450
225 × 450 × cos 40°
225 × 450 × sin 40°
225 × 450 × tan 40°
A student applies a force to a copper wire.
Which row of the table shows the length and diameter of wire that would produce the greatest extension?
A
B
C
D
A force‑extension graph for a spring is shown.
Which of the following is the work done, in joules, to extend the spring by 0.30 m from its original length?
0.75 J
0.38 J
8.33 J
0.12 J
Two forces form a Newton’s third law pair.
Which of the following statements is not true?
The forces act on the same object.
The forces have the same magnitude.
The forces act for the same time.
The forces are the same type of force.
A student determined the acceleration of free fall g.
She measured the time t for a ball bearing to fall from rest through a distance s.
She repeated this for a range of values of s.
Which row of the table shows the graph that would give a gradient equivalent to g?
A
B
C
D
Two identical springs are arranged in series. A force of 45.0 N is applied to the springs, as shown.
The springs extend a total distance of 15 mm.
Which of the following is the stiffness of each spring in N mm-1?
0.17
1.5
0.67
6
The spring constants of four springs are determined by plotting the following graphs of force F against extension x.
Which order of the graphs shows decreasing spring constants?
2 → 1 → 3 → 4
3 → 4 → 2 → 1
4 → 2 → 1 → 3
4 → 3 → 2 → 1
A car is fitted with an airbag which will inflate if the car stops very suddenly.
Which of the following is increased if the airbag inflates because the car suddenly stops?
change in momentum of the driver
change in velocity of the driver
force on the driver
time that the driver takes to stop
A rocket is fired from the Earth into space. Newton’s third law of motion describes how forces act in pairs.
One of the forces of a pair is the weight of the rocket.
What is the other force of this pair?
air resistance
force of the exhaust gases on the rocket
force of the rocket on the exhaust gases
gravitational force of the rocket on the Earth
A student determined the acceleration of free fall g.
She measured the time t for a ball bearing to fall from rest through a distance s. She repeated this for a range of values of s.
Which row of the table shows the graph that would give a gradient equivalent to g?
A
B
C
D
A rocket is accelerating horizontally due to a constant resultant force.
The mass of the rocket decreases steadily as it uses up its fuel.
Which graph shows how the acceleration of the rocket could change?
When a certain spring is stretched by a tensile force F, the elastic energy stored in the spring is E.
Three of these springs are arranged in parallel and stretched by a tensile force of 2F, as shown.
Which of the following expressions gives the elastic energy stored in the parallel system?
31E
32E
34E
2E
A rubber band is initially stretched by an increasing force. When the force is gradually decreased, the rubber band returns to its original length.
The force-extension graph for the rubber band is shown.
P, Q and R represent different areas of the graph.
Which of the following gives the work done in stretching the rubber band up to its maximum extension?
P + Q
Q + R
R
Q
The graph shows the variation with time of the acceleration of a car.
What must the shaded area under the graph represent?
the average velocity of the car
the change in velocity of the car
the final velocity of the car
the initial velocity of the car
A box rests on the Earth, as shown.
Newton’s third law describes how forces of the same type act in pairs. One of the forces of a pair is the weight W of the box.
Which arrow represents the other force of this pair?
A
B
C
D
A man stands in a lift that is accelerating vertically downwards, as shown.
Which statement describes the force exerted by the man on the floor?
It is equal to the weight of the man.
It is greater than the force exerted by the floor on the man.
It is less than the force exerted by the floor on the man.
It is less than the weight of the man.
A trolley is placed on a slope and released from rest. It moves down the slope with a constant acceleration a. The mass of the trolley is then doubled, everything else is kept the same and trolley rolls down the slope again. Air resistance and friction are negligible in both experiments.
Which of the following is correct?
The new acceleration is a/2.
The acceleration does not change.
The new acceleration is 2a.
The force providing the acceleration does not change.
The graph shows how the resultant force applied to an object of mass 2.0 kg, initially at rest, varies with time.
What is the speed of the object after 1.0 s?
2.5 m s−1
5.0 m s−1
7.5 m s−1
10 m s−1
A space rocket lifts off vertically.
The rocket lifts off because
the exhaust gases exert a force on the ground.
the exhaust gases exert a force on the rocket.
the ground exerts a force on the rocket.
the rocket exerts a force on the ground.
An object of mass m falls vertically with a velocity v.
A resistive force of ρv acts on the object, where ρ is a constant.
Which expression gives the terminal velocity of the object?
ρmg
gρm
ρmg
mgρ
An astronaut on the Moon, where there is no air resistance, throws a ball. The ball’s initial velocity has a vertical component of 8.00 m s-1 and a horizontal component of 4.00 m s-1, as shown.
The acceleration of free fall on the Moon is 1.62 m s-2.
What will be the speed of the ball 9.00 s after being thrown?
6.6 m s-1
7.7 m s-1
10.6 m s-1
14.6 m s-1
A cannon fires a cannonball with an initial speed v at an angle α to the horizontal as shown.
Which equation is correct for the maximum height H reached?
H=2gvsinα
H=2vgsinα
H=2g(vsinα)2
H=2vg2sinα
Which row in the table gives two features of graphs that provide the same information?
A
B
C
D
Which of the following is an SI unit for stress?
kg m-2
m2 kg-2
m2 kg-2
N m-2
A cyclist moves along a horizontal road at a constant speed. She then moves at the same speed up a hill with a constant gradient.
Which of the following graphs shows how the power output P of the cyclist varies with time t?
A student dropped a table tennis ball. The ball fell for time t and had velocity v just before it hit the ground.
The student used the equations of motion to calculate t and v. These equations ignore air resistance.
Which row of the table shows how the actual values compared with the student’s calculated values for t and v?
A
B
C
D
An object moves from rest with uniform acceleration for time t.
The acceleration-time graph for the object is shown. X is the area under the graph between time 0 and time t.
Which of the following expressions gives the distance moved by the object?
X
X/2
Xt
Xt/2
A force is applied to stretch two wires, P and Q, until the wires break. Each wire is made of a different metal.
The stress-strain graph for each wire is shown.
Which of the following statements is correct?
P has a greater breaking stress than Q.
P has a greater breaking strain than Q.
P has a greater yield stress than Q.
P has a lower Young modulus than Q.
