4 marksA mass is hung from a spring and set into vertical oscillation by displacing the mass 5 cm from its equilibrium position.
The graph shows how the acceleration a of the mass depends upon the displacement x of the mass from its equilibrium position.
Sketch a graph on the axes below to show how x depends upon time t.
Did this page help you?
4 marks
When the loudspeaker is producing this sound, the coil moves through a maximum distance of 3.5 mm.
(3)
Maximum velocity of the coil = .............................
(1)
2 marksExplain why this effect is observed.
Did this page help you?
6 marksA website advertises a baby crib that can be hung from a spring. The crib can be set into vertical oscillation.
The instructions for the crib state that the crib can support a maximum mass of 15.0 kg.
(2)
2 marksThe maximum mass that the spring can support before being damaged is 25.0 kg.
Explain why the instructions state that the maximum mass is only 15.0 kg.
Did this page help you?
5 marksA student set up a simple pendulum. The student used a velocity sensor connected to a data logger to record the velocity of the pendulum bob.
The graph shows how the velocity of the bob varied with time.
(2)
(3)
Length of simple pendulum = ........................................
2 marksIn some experiments, it is an advantage to use a data logger rather than other measuring instruments.
Describe when the use of a data logger is an advantage.
Did this page help you?
2 marksA student suspended a spring from a rigid support. She stretched the spring by hanging a mass from the free end of the spring as shown.
She set the mass into vertical oscillations by displacing it a small distance from its equilibrium position. The spring obeys Hooke’s law.
Did this page help you?
8 marks
She set the mass into vertical oscillations by displacing it a small distance from its equilibrium position. The spring obeys Hooke’s law.
When the mass on the end of the spring was 0.200 kg, the extension of the spring was 7.50 cm when the mass was in equilibrium.
The student used the graph to determine a value for k.
Deduce whether the graph gives a value of k consistent with the value in (i).
Did this page help you?