Free Printable Physics A Level (P1)

Worksheets

Physics A Level (P1)

Total questions: 20

Worksheet time: 12mins

Name

Class

Date

Which expression has the same SI base units as pressure?

$\frac{force}{length\ \ \times\ speed}$

$\frac{force}{length\ \ \times\ \ time}$

$\frac{mass}{length\ \ \times\ \ \left(time\right)^2}$

$\frac{mass\ \ \times\ \ \left(time\right)^2}{length}$

What is an approximate value for the speed of sound in air?

30ms^–1

300ms^–1

30,000ms^–1

300,000,000ms^–1

A pendulum bob is held stationary by a horizontal force H. The three forces acting on the bob are

shown in the diagram.

The tension in the string of the pendulum is T. The weight of the pendulum bob is W. The string is held at an angle of 30° to the vertical.

Which statement is correct?

H = T cos 30

T = H sin30

W = T sin30

W = T cos 30

A student is investigating an electrical signal using a cathode-ray oscilloscope (c.r.o).

The frequency of the signal is 50kHz.

Which time-base setting on the oscilloscope should be used?

50mscm^–1

1mscm^–1

10µscm^–1

0.5 µscm–1

A student wishes to measure a distance of about 10cm to a precision of 0.01cm.

Which measuring instrument should be used?

meter rule

micrometer

tape measure

vernier calipers

An aircraft, initially stationary on a runway, takes off with a speed of 85kmh^–1 in a distance of no

more than 1.20km.

What is the minimum constant acceleration necessary for the aircraft?

0.23ms^–2

0.46ms^–2

3.0 ms^–2

6.0 ms^–2

The acceleration of free fall on Pluto is 0.66ms–2.

An object weighs 6.0N on Earth.

What would this object weigh on Pluto?

0.40N

0.93N

4.0 N

39N

A radio-controlled toy car travels along a straight line for a time of 15s.

The variation with time t of the velocity v of the car is shown.

What is the average velocity of the toy car for the journey shown by the graph?

–1.5ms^–1

0.0ms^–1

4.0ms^–1

4.5ms^–1

Water flows out of a pipe and hits a wall
When the jet of water hits the wall, it has horizontal velocity v and cross-sectional area A.
The density of the water is ρ. The water does not rebound from the wall.What is the force exerted on the wall by the water?

$\frac{\rho v}{A}$

$\frac{\rho v^2}{A}$

$\rho Av$

$\rho Av^2$

10.

A stationary firework explodes into three pieces. The masses and the velocities of the three

pieces immediately after the explosion are shown.

What are speed v₁ and speed v₂ respectively?

4.0, 4.0

9.2, 9.2

14,14

16,16

11.

A spherical object falls through water at constant speed. Three forces act on the object.

Which diagram, showing these three forces to scale, is correct?

12.

A uniform metre rule of weight 2.0N is pivoted at the 60 cm mark. A 4.0N load is suspended from

one end, causing the rule to rotate about the pivot.

At the instant when the rule is horizontal, what is the resultant moment about the pivot?

0.0Nm

1.4 Nm

1.6 Nm

1.8 Nm

13.

The vertical forces that the ground exerts on a stationary van are shown.

The van is 2.50m long with the wheels at a distance of 0.600m from the front of the van and

0.400m from the rear of the van.

What is the horizontal distance of the van’s centre of gravity from the front of the van?

0.540m

0.960m

1.14m

1.36m

14.

An object hangs by means of two cords around two rods, as shown.

The object is held in equilibrium by the forces F1 and F2. The object weighs 10N. There is

negligible friction between the rods and cords. Angle θ is 90°.

Which row of the option gives the value of F₁ and F₂respectively for an angle θ of 90°?

4.0, 6.0

6.0, 4.0

6.0, 8.0

8.0, 6.0

15.

Which force is caused only by a pressure difference?

friction

upthrust

viscous force

weight

16.

The total energy input Ein in a process is partly transferred to useful energy output U and partly

transfered to energy that is wasted W.

What is the efficiency of the process?

$\frac{U}{E_{in}}\times100\%$

$\frac{W}{E_{in}}\times100\%$

$\frac{U}{W}\times100\%$

$\frac{U+W}{E_{in}}\times100\%$

17.

A gas is enclosed inside a cylinder which is fitted with a frictionless piston.

Initially, the gas has a volume V₁ and is in equilibrium with the external pressure p. The gas is

then heated slowly so that it expands at constant pressure, pushing the piston back until the

volume of the gas has increased to V₂

p(V₂ – V₁)

$\frac{1}{2}$ p(V2 – V1)

p(V2 + V1)

$\frac{1}{2}$ p(V2 + V1)

18.

A projectile is thrown at an angle to the ground.

At a certain time, the projectile has a horizontal velocity of 23.0ms–1 and a vertical velocity

of –10.1ms–1.

What is the speed of the projectile at this time?

12.9ms^–1

20.7ms^–1

25.1ms^–1

33.1ms^–1

19.

A car of mass 1400 kg is travelling on a straight, horizontal road at a constant speed of 25ms–1.

The output power from the car’s engine is 30kW.

The car then travels up a slope at 2° to the horizontal, maintaining the same constant speed.

What is the output power of the car’s engine when travelling up the slope?

12kW

31kW

42kW

65kW

20.

Two wires X and Y are made of different metals. The Young modulus of wire X is twice that ofwire Y. The diameter of wire X is half that of wire Y.The wires are extended with the same strain and obey Hooke’s law.What is the ratio tension in wire Y
tension in wire X ?

$\frac{1}{8}$

$\frac{1}{2}$

Reset

Physics A Level (P1)

Total questions: 20

Worksheet time: 12mins

Similar Resources on Wayground