Physics Mock part I

• A

• B

• C

• D

A stone falls freely from the top of a cliff. Air resistance may be ignored.

Which graph shows how the acceleration of the stone varies with time as it falls?

• A

• B

• C

• D

The speed-time graph for an object is shown. Below are four statements about the acceleration of the object.

Which statement is correct?

• The acceleration in the first 5 s is given by area P.

• The acceleration increases between W and X.

• The acceleration is negative between Y and Z.

• The deceleration between Y and Z is (20 ÷ 25)m / s^2

An object tends to keep moving with the same speed and in the same direction due to a certain

property.

The object also has weight due to the action of a field.

What is the name of the property, and what is the name of the field?

• A

• B

• C

• D

A student uses a measuring cylinder and a balance to find the density of oil. The diagram shows

the arrangement used.

Which calculation gives the density of the oil?

• A

• B

• C

• D

An object travels in a circular path at constant speed.

Which statement about the object is correct?

• It has changing kinetic energy.

• It has changing momentum.

• It has constant velocity.

• It is not accelerating.

The diagrams show a spring and a graph of the length of the spring against the load applied to it.

What is the extension of the spring when a load of 40N is applied to it?

• 1.5 cm

• 2.5 cm

• 4.0 cm

• 6.5 cm

A girl of mass 50 kg runs at 6.0 m / s. What is her momentum?

• 300 J

• 300 kg m/s

• 900 J

• 900 kg m/s

Which list contains only vector quantities?

• acceleration, energy, force, mass

• acceleration, force, momentum, velocity

• distance, energy, mass, speed

• distance, momentum, power, speed

Electricity can be generated using different energy resources. Which energy resource is used to generate electricity without needing any moving parts?

• geothermal

• hydroelectric

• solar

• water waves