Basic mechanics

?
  • Created by: hjdowning
  • Created on: 21-01-19 12:10
If a mass of 500kg is lifted through a height of 2m, calculate the amount of work done.
9,810Nm
1 of 16
A mass of 300kg is raised through a vertical height of 8m. Calculate the amount of work done.
23,544Nm
2 of 16
Calculate the work done when a force of 750N moves an object through a horizontal distance of 15m.
11,250Nm
3 of 16
Calculate the work done when a force of 350N moves an object through a distance of 3.5m.
1,225Nm
4 of 16
If the amount of work done by a force of 100N is 800Nm, calculate the distance the object has moved.
8m
5 of 16
Calculate the distance covered by a trolley of 51kg when the amount of work done is 1,020Nm.
20m
6 of 16
Calculate the opposition force of a transformer that moves 40m when the work done is 14,000Nm.
350N
7 of 16
Calculate the weight of a transformer that moves 25m when the work done is 23,298.75Nm.
95kg
8 of 16
An object is moved across a distance of 20m in 5 seconds by a force of 50N. Calculate the power used.
200 watts
9 of 16
Calculate the power required to move a weight of 300N through a vertical distance of 5m in 2 seconds.
750 watts
10 of 16
A mass of 40 litres of water is lifted through a height of 10m in 5 seconds. Calculate the power that has been used.
784.8W
11 of 16
Calculate the power required to raise 2.5m3 of water from a well 12.5m deep in 30 seconds. NB: 1m3 of water = 1,000kg.
10,218.75W
12 of 16
A hoist raises a load of 3 tonnes through 8 metres in 15 seconds. Determine the power developed by the hoist. NB: 1 Tonne = 1,000kg.
15.696kW
13 of 16
An electric motor drives a pump that raises 1,000 litres of water each minute to a tank 20m above ground level. Calculate the power that the motor must provide if the pump is only: a. 50% efficient b. 80% efficient.
6.540kW 4.088kW
14 of 16
A pump raises 0.15m3 of water per minute from a well 7.5m deep. Calculate the power required to drive the pump if it is only 75% efficient.
245.25W
15 of 16
A pump, which raises 0.12m3 of water per minute from a well 8.5m deep, is driven by a 250 volt d.c. motor. Assuming that the efficiency of the pump is 72% and that that of the motor is 78%, calculate the current drawn from the supply by the motor
1.19A
16 of 16

Other cards in this set

Card 2

Front

A mass of 300kg is raised through a vertical height of 8m. Calculate the amount of work done.

Back

23,544Nm

Card 3

Front

Calculate the work done when a force of 750N moves an object through a horizontal distance of 15m.

Back

Preview of the front of card 3

Card 4

Front

Calculate the work done when a force of 350N moves an object through a distance of 3.5m.

Back

Preview of the front of card 4

Card 5

Front

If the amount of work done by a force of 100N is 800Nm, calculate the distance the object has moved.

Back

Preview of the front of card 5
View more cards

Comments

bar3y

Report

work done is measured in joules for a start not newtons 

Similar Fun resources:

See all Fun resources »See all Fun resources »