NEW
Font size
WorksheetsY11 Physics Topic 2 Mechanics - Paper 1
Total questions: 15
Worksheet time: 15mins
What is the unit of electrical energy in fundamental SI units?
A
B
C
D
The graph shows the variation of the acceleration a of an object with time t.
What is the change in speed of the object shown by the graph?
0.5 ms-1
2.0 ms-1
36 ms-1
72 ms-1
An elevator (lift) and its load have a total mass of 750kg and accelerate vertically downwards
at 2.0ms-2.
What is the tension in the elevator cable?
1.5kN
6.0kN
7.5kN
9.0kN
A car travelling at a constant velocity covers a distance of 100m in 5.0s. The thrust of the engine is 1.5kN.
What is the power of the car?
0.75kW
3.0kW
7.5kW
30kW
A cyclist accelerates in a straight line. At one instant, when the cyclist is exerting a forward force of 40N, the air resistance acting on the cyclist is 10N.
What is the rate of change of momentum of the cyclist at this instant?
10 kgms-2
30 kgms-2
40 kgms-2
50 kgms-2
A student measures the radius r of a sphere with an absolute uncertainty ∆r. What is the fractional uncertainty in the volume of the sphere?
A
B
C
D
An object is projected vertically upwards at time t = 0. Air resistance is negligible. The object passes the same point above its starting position at times 2s and 8s.
If g = 10 m s–2, what is the initial speed of the object?
50
30
25
4
A uniform ladder resting in equilibrium on rough ground leans against a smooth wall.
Which diagram correctly shows the forces acting on the ladder?
3/4
4/3
9/16
16/9
Child X throws a ball to child Y. The system consists of the ball, the children and the Earth.
What is true for the system when the ball has been caught by Y?
The momentum of child Y is equal and opposite to the momentum of child X.
The speed of rotation of the Earth will have changed.
The ball has no net momentum while it is in the air.
The total momentum of the system has not changed.
A parachutist of total mass 70kg is falling vertically through the air at a constant speed of 8ms-1.
What is the total upward force acting on the parachutist?
0 N
70 N
560 N
700 N
A stopper of mass 8 g leaves the opening of a container that contains pressurized gas. The stopper accelerates from rest for a time of 16ms and leaves the container at a speed of 20ms-1.
What is the order of magnitude of the force acting on the stopper?
10-3N
100N
101N
103N
A sports car is accelerated from 0 to 100km per hour in 3s. What is the acceleration of the car?
0.1g
0.3g
0.9g
3g
A waiter carrying a tray is accelerating to the right as shown in the image.
What is the free-body diagram of the forces acting on the tray?
