Physical quantities may be vectors or scalars.
Which row of the table is correct?
| Force | Mass | Acceleration |
A | scalar | vector | scalar |
B | scalar | scalar | vector |
C | vector | vector | scalar |
D | vector | scalar | vector |
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Motion
Physical quantities may be vectors or scalars.
Which row of the table is correct?
| Force | Mass | Acceleration |
A | scalar | vector | scalar |
B | scalar | scalar | vector |
C | vector | vector | scalar |
D | vector | scalar | vector |
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Graphs can be used to represent the motion of an object.
Which row in the table gives a quantity plotted on the ‐axis and the corresponding quantity represented by the gradient of the graph?
Quantity plotted on ‐axis | Gradient of graph | |
---|---|---|
A | displacement | acceleration |
B | velocity | acceleration |
C | acceleration | velocity |
D | acceleration | displacement |
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A tennis ball is moving through the air. The diagram shows the horizontal and vertical components of its velocity.
Which of the following expressions gives the magnitude of the velocity in ?
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A block of wood is stationary on a frictionless ramp as shown.
The block is held in place by a string. The weight of the block is . The force applied to the block by the string is .
A triangle of forces can be used to determine the magnitude and direction of the normal contact force acting on the block.
Which of the following triangles is correct?
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A student walks for 6 seconds. The displacement-time graph for the student is shown.
Which row of the table shows the final displacement and velocity of the student?
| Displacement / m | Velocity / m s–1 |
A | 2.0 | 0.5 |
B | 3.0 | 0.5 |
C | 5.0 | 2.0 |
D | 3.0 | 2.0 |
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An object on the Moon falls a vertical distance of 0.32 m, from rest, in a time of 0.63 s.
Which of the following expressions gives the acceleration due to gravity on the Moon in m s−2?
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A ball bearing falls vertically from rest through a distance of 50cm in a time of 0.32s.
Which expression gives the acceleration of the ball bearing in m s–2?
1 ÷ 0.322
0.5 ÷ 0.32
100 ÷ 0.322
50 ÷ 0.32
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Which of the following is a scalar quantity?
weight
momentum
terminal velocity
kinetic energy
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A constant forward force acts on a car. The car accelerates along a straight road. After a while, the speed of the car reaches a constant value.
Which graph shows the variation of acceleration with time for the car?
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Two forces F1 and F2 act on an object, as shown.
Which of the following is a correctly drawn scaled vector diagram for the resultant R of the forces F1 and F2 ?
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Two identical objects with the same initial speed fall from the same height in a vacuum chamber, as shown. The arrows in the diagram show initial directions of travel of the objects.
Which of the following quantities are not the same for both objects?
The accelerations of the objects during the fall.
The velocities of the objects as they reach the floor.
The increase in the speeds of the objects during the fall.
The kinetic energies of the objects as they reach the floor.
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The velocity-time graph for a particle is shown.
Which of the following is the displacement-time graph for this particle?
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