Revision_Unit3_5_Pierce_SGS_EOY2017
Quiz by Jessica Lew
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Two equal masses m are connected by an inextensible string and move across a smooth frictionless horizontal surface with uniform acceleration, when pulled by a force F. Find the value of T.
290.5 F
Zero
F
2F
- Q1
Two equal masses m are connected by an inextensible string and move across a smooth frictionless horizontal surface with uniform acceleration, when pulled by a force F. Find the value of T.
0.5 F
Zero
F
2F
120s - Q2
Two Forces, 10 N and 2 N act on an object. What is the maximum and minimum resultant force possible?
Max: 8 N; Min: 2 N
Max: 12 N; Min: 8 N
Max: 8 N; Min: 2 N
Max: 12 N; Min: 2 N
60s - Q3
When two equal and opposite forces act on an object moving with constant velocity, what will happen to the object?
The object will move faster as it was already moving.
The object will move slower due to the equal and opposite forces.
The object will continue moving with the same velocity.
The object will stop immediately as there is no resultant force
60s - Q4
When a body is in neutral equilibrium, any displacement will
lower its centre of gravity.
return the body to its original position.
raise its centre of gravity.
neither raise nor lower its centre of gravity.
30s - Q5
A non-uniform rod AB of length 1 m is laid on supports across two top-pan balance as shown in the diagram. The balances show readings of 360 g and 240 g. Where is the centre of gravity of the rod?
0.2 m from end A
0.4 m from end B
0.5 m from end B
0.4 m from end A
120s - Q6
Which of the following does not illustrate the effect of inertia?
It is difficult to push a trolley full of items and difficult to stop it when it is moving.
It is easier to slide a heavy box up a ramp to a certain height than to lift it vertically to the same height.
When a bus starts to move, a passenger may jerk backwards.
A tablecloth can be pulled from under a set of dishes without causing the dishes to fall.
60s - Q7
Newton's third law concerns the forces of interactions between two bodies. Which of the following statements relating to the third law is not correct?
The two forces are equal and opposite so the bodies are in static equilibrium.
The two forces are at all times equal in magnitude.
The two forces are always opposite in direction
60s
