Exam code: 0625 & 0972
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Extended tier only
A planet orbits a star at a constant speed in a circular orbit.
Which of the statements below, about the force needed to maintain this motion, is correct?
No force is required to maintain this motion.
The force acts radially away from the centre of the circle.
The force is in the same direction as the planet's motion.
The force is directed to the centre of the circular orbit.
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Extended tier only
A car is driving around a circular track at a constant speed.
Which statement describes the motion of the car?
The car is accelerating because its speed is changing
The car is not accelerating as it is moving at a constant speed
The car is accelerating because its velocity is changing
The car is not accelerating, but its velocity is changing.
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In which of the following situations would no resultant force be required?
A motorbike travelling round a bend at a constant speed.
A rocket accelerating straight upwards into space.
A ship sailing at a constant speed across the ocean.
A Formula One car accelerating off the starting grid.
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Extended tier only
The Moon orbits the Earth at a constant speed.
Which of the arrows on the diagram shows the direction of the resultant force on the Moon?
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A car starts from rest and rapidly increases speed.
There is a forward acting force on the car from the engine, and a backward acting force on the car from air resistance and friction.
Choose the force diagram and description that best describes the magnitude of the opposing forces.
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The diagrams show the forces acting on four moving objects.
Which object is moving at a constant speed?
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Extended Tier Only
An object on the end of a string moves in a clockwise circular path at constant speed. The diagram shows the object as viewed from above.
What is the direction of the resultant force on the object when it is in the position shown?
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The graph shows the load-extension graph for a spring.
What does point P represent?
the maximum load the spring can withstand
the limit of proportionality of the spring
the maximum extension of the spring
the spring constant of the spring
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The diagram shows four objects, each with the same mass. Each object is acted on by the forces shown.
Which object will experience the largest acceleration to the left?
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A motorbike travels at a constant speed along a flat road. Three horizontal forces act on the motorbike. Two of them are shown in the diagram below.
What is the size and direction of the third force?
2800 N forwards
1200 N backwards
1200 N forwards
2800 N backwards
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An object with three forces acting on it is shown below.
What is the resultant force acting on the object?
90 N downwards
110 N upwards
200 N downwards
90 N upwards
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Two students were discussing Newton's first law of motion.
Which statement correctly summarises this law?
An object will not change its speed or direction unless a resultant force acts upon it
An object will not move unless a resultant force acts upon it
An object will not speed up unless a resultant force acts upon it
An object will not change its direction unless a resultant force acts upon it
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Extended tier only
A car slows down as it approaches a traffic light. The car was traveling at 13.5 m/s and it takes 22 s to come to a stop.
The mass of the car is 950 kg.
Calculate the force required to stop the car.
-580 N
580 N
618 N
1548 N
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A student hangs different loads on a spring.
The diagrams show the lengths of the spring with different loads.
Which row gives the correct extensions of the spring?
| extension / cm when the load is 0 N | extension / cm when the load is 2.0 N | extension / cm when the load is 4.0 N |
A | 0 | 3.0 | 3.0 |
B | 0 | 3.0 | 6.0 |
C | 3.0 | 3.0 | 3.0 |
D | 3.0 | 6.0 | 9.0 |
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Which pieces of apparatus are the most appropriate for an experiment to plot an extension–load graph of a spring?
ruler, newton meter, clamp and stand
balance, stop-watch, ruler
light gate, ruler, newton meter
stop-watch, balance, measuring cylinder
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Four objects are moving.
Which object has a zero resultant force acting on it?
the object moving at a decreasing speed
the object moving at an increasing speed
the object moving at a constant speed in a circle
the object moving at a constant speed in a straight line
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A train is travelling horizontally in a straight line. A book is on a table in the train. The diagram shows all the forces acting on the book.
How is the train moving?
accelerating to the left of the diagram
accelerating to the right of the diagram
moving at uniform speed to the left of the diagram
moving at uniform speed to the right of the diagram
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A skydiver falls before opening her parachute.
Which graph correctly shows how her speed changes with time?
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An aeroplane flies horizontally at constant speed as shown.
Which statement about the resultant force on the aeroplane is correct?
There is no resultant force on the aeroplane.
There is a resultant force on the aeroplane in the direction of travel.
There is a resultant force on the aeroplane in the opposite direction to the direction of travel.
There is a resultant force on the aeroplane vertically downwards.
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An aeroplane flies horizontally at constant speed as shown.
Which statement about the resultant force on the aeroplane is correct?
There is no resultant force on the aeroplane.
There is a resultant force on the aeroplane in the direction of travel.
There is a resultant force on the aeroplane in the opposite direction to the direction of travel.
There is a resultant force on the aeroplane vertically downwards.
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A satellite orbits a planet in a circular path at constant speed.
Which statement about the resultant force is correct?
No force acts because speed is constant.
The force is in the direction of motion.
The force is directed towards the centre of the orbit.
The force is directed away from the planet.
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Extended tier only
A skydiver is falling at terminal velocity. He has not yet opened his parachute.
He opens his parachute.
What is the direction of both the velocity of the skydiver, and his acceleration?
| Direction of the skydiver’s velocity | Direction of the skydiver’s acceleration |
A | upwards | upwards |
B | upwards | downwards |
C | downwards | upwards |
D | downwards | downwards |
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Extended tier only
A bus drives along a flat road. Its engine produces a forward driving force of 7000 N. Drag forces, D also act on the bus.
The bus has an acceleration of 1.2 m/s2 and a mass of 2500 kg.
What is the value of D?
3000 N
4000 N
4500 N
5000 N
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The diagram shows four objects, each with a different mass. Each object is acted on by the forces shown.
Which object will experience the largest magnitude of acceleration?
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The graph below shows the journey of a truck along a straight, flat road.
During which part of the journey is the resultant force on the truck equal to zero?
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A car is driving on a motorway at a constant speed of 70 miles per hour.
The driver notices a queue of traffic up ahead and begins to slow down.
Which diagram best describes the resultant force acting on the car as it slows down?
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On the Earth, a spring stretches by 5.0 cm when a mass of 3.0 kg is suspended from one end.
The gravitational field strength on the Moon is 
of that on the Earth.
Which mass, on the Moon, would stretch the spring by the same extension?
0.50 kg
3.0 kg
5.0 kg
18 kg
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