- Which of the following is not an S.1 unit?

- Kilogram
- Kilometer
- Second
- Metre

- Calculate the mass in kilograms of air in a room of dimensions 10m x 10m x 5m assuming the density of air = 1.29 kgm
^{-3}

- 3876kg
- 645kg
- 2.58 x 10
^{-4}kg - 0.0219kg

- In the crushing can experiment, the can collapses because

- It is weakened by hot water.
- Pressure outside id greater than pressure inside.
- It is made of very light material.
- Pressure inside is atmosphere.

- The forces that hold the molecules in a mercury drop together are called

- Surface tension
- Cohesive forces
- Adhesive forces
- Electrostatic force.

- An object moving with a velocity of 10ms
^{-1}is accelerated uniformly at 2ms^{-2}.Find its velocity when it has travelled 24m.- 14ms
^{-1} - 24ms
^{-1 } - 16ms
^{-1} - 18ms
^{-1}

- 14ms
- A driver uses a convex mirror as his driving mirror because it

(i) Gives a bigger magnification

(ii) Forms an upright image

(iii) Gives a wider field of view.

- Only ii
- Only ii and iii
- Only iii
- i, ii, iii.

- A bullet of mass 0.003kg travelling at 100ms
^{-1}penetrates deeply into a fixed target and is brought to rest in 0.01s. Calculate the average retarding force exerted on the bullet.

- 30N
- 300N
- 3N
- 3000N

- Pressure in a liquid is independent of the

- Density of the liquid
- Depth below the surface of the liquid
- Cross sectional area and the shape of the vessel containing the liquid.
- Pressure exerted on the surface of the liquid.

- A bullet of mass 0.02kg is fired with speed of 40ms
^{-1}. Find its kinetic energy.- 0.45J
- 0.8J
- 16J
- 30J

- A loading of 4N stretches a spring by 0.5cm. Calculate the extension when a load of 8N is applied.
- 0.25cm
- 1.0cm
- 2.0cm
- 4cm

- A rectangular block of dimensions 4cm x 2cm x 1 cm exerts a minimum pressure of 200Nm
^{-2}when resting on a table. Calculate the mass of the block.- 4g
- 16g
- 40g
- 400g

- A body has a weight of 200N on the surface of the earth; if its weight on the surface of the moon is 30N, calculate the acceleration due to gravity on the moon’s surface in ms
^{-2}.- 1.6
- 3.2
- 3.75
- 10

- The following are equations of uniformly accelerated motion except
- v = u + at
- v
^{2}= u^{2}+ 1/2 at^{2} - v
^{2}= u^{2}+ 2as - s = ut + 1/2at
^{2}

- The property of liquids where their surfaces behave as though covered by an elastic skin is

- elasticity
- surface tension
- diffusion
- Brownian motion

- Which statement about the mass of a falling object is correct?
- It decreases as the object falls.
- It is equal to the weight of the object.
- It is measured in Newton.
- It stays the same as the object falls.

- Force is given by the product of
- Displacement and velocity
- Displacement and mass
- Acceleration and mass.
- Velocity and mass

- A body of mass 5kg is moving with a velocity of 200cms
^{-1},the momentum of the body in kgms^{-1 }is- 10
- 40
- 1000
- 50,000

- A body is said to be moving with uniform velocity when

- The rate of change at acceleration with time is constant
- The rate of change of distance with time is constant
- The rate of change of velocity with time is constant
- The rate of change of displacement with time is constant.

- Find the force that would give a mass of 400g an acceleration of 8ms
^{-2 }- 0.05N
- 3.20N
- 20.00N
- 50.00N

- When a body is raised above the ground, its gravitational potential energy
- Is lowered
- Is raised
- Remains constant
- changes to kinetic energy