Topic Quiz on Motion
Quiz
In an equation, the symbol delta
(D) stands for:
 Difference in
 Sum of
 Inverse of
 Values greater than
Velocity is defined as:
 distance divided by time;
 displacement divided by time;
 displacement multiplied by time;
 a posh word for speed.
In a distance time graph, the speed is given by
 The gradient
 The area under the graph
 The intercept
 The sum of values on the
yaxis
In a speed time graph, which one of the following statements is correct?
 The intercept gives the acceleration while the gradient gives the distance.
 The area gives the acceleration while the gradient gives the distance.
 The gradient gives the acceleration while the area under the graph gives the displacement.
 The gradient gives the acceleration while the area under the graph gives the distance.
A stone is dropped from a tall building 30 m high. Its final speed just before it hits the ground is about:
 25 m
s^{1}

60 m s^{1}

300 m s^{1}

600 m s^{1}
A runner is running at 5
m s^{1} and increases his speed to 7.5 m s^{1} over a period of 3 seconds. The distance he covers in this time is:
 5.0 m
 6.25m
 9.25 m
 18.75 m
A freefall parachutist jumps out of a plane. After several seconds the acceleration will have:

increased to 60 m s^{1}
 remained the same as before
 reduced because the air resistance is pushing upwards on the sky diver
 reduced because the weight of the object is pushing upwards on the sky diver
A parachutist has a terminal speed because:
 the weight and the air resistance have balanced out
 the pull of gravity is bigger than the weight
 there is no longer any weight
 the parachutist has hit the ground and suffered fatal injuries.
In a distancetime graph for a cyclist at a constant speed, the gradient of the graph:
 increases from zero to a maximum and decreases;
 stays constant at a nonzero value
 stays constant at a zero value;
 increases linearly from zero
An object accelerates with negative acceleration at a constant rate. Which of the following statements is or are correct?
 The acceleration is the gradient of the velocity time graph
 The final velocity can be worked out using
v = u + at.
 The object is slowing down in the direction of the velocity.
 The displacement can be calculated by working out the area under the displacement time graph.