Foundation Physics 2 - Exam 1 Revision - Engineering Physics

A basketball is being pushed by a player during tip-off. He exerts an upward force of 15 N at a perpendicular distance of 0.14 m from the axis of rotation. Find the torque acting on the ball about its centre of mass.

• 107.14 Nm

• 15.14 Nm

• 2.1 Nm

• 14.86 Nm

Will the following object rotate ?

• Yes, it will rotate clockwise

• Yes, it will rotate anticlockwise

• No, it will not rotate

• Not enough information

Identify whether the beam is in rotational equilibrium or rotates about its pivot.

• The beam is in rotational equilibrium

• The beam rotates about its pivot

• Not enough information

What force is applied to a spanner to turn a nut if the perpendicular distance is 0.4 m and the moment produced is 12 Nm?

• 12.4 N

• 4.8 N

• 0.033 N

• 30 N

Find the moment produced by a 15 N pushing force acting on a pedal 0.25 m distant from the pivot.

• 0.017 Nm

• 15.25 Nm

• 3.75 Nm

• 60 Nm

Calculate the density of a 0.5 kg of gas in a 2 m³ cylinder.

• 1 kg/m³

• 0.25 kg/m³

• 2.5 kg/m³

• 4 kg/m³

Find the volume of a sample of mercury (ρ = 13.6 x 10³ kg/m³) which mass is 0.45 kg.

• 3.31 x 10^-5 m³

• 3.02 x 10⁴ m³

• 6120 m³

• 14.05 m³

A storage tank of dimensions 2m x 2m x 10m contains 2,500 kg of fuel. Calculate the density of the fuel.

• 0.016 kg/m³

• 32.5 kg/m³

• 125 kg/m³

• 62.5 kg/m³

Calculate the Relative density to water of 0.5 kg of a liquid in a 2 m³ cylinder.

• 0.25

• 4

• 2.5 x 10^-4

• 5 x 10^-3

A rectangular container with dimensions of 3mx2mx1m is filled with 30kg of fuel. Calculate the relative density of the fuel compared to water.

• 5 x 10^-1

• 5

• 5 x 10^-4

• 5 x 10^-3