WorksheetsUnderstanding Levers and Moments
Total questions: 15
Worksheet time: 8mins
Which of the following is a characteristic of a first-class lever?
The fulcrum is located between the effort and the load.
The load is located between the fulcrum and the effort.
The effort is located between the fulcrum and the load.
The load and effort are on the same side of the fulcrum.
What is the principle of moments?
The sum of the clockwise moments equals the sum of the anticlockwise moments about a pivot.
The sum of the forces equals zero.
The product of the force and distance is constant.
The total energy in a system remains constant.
How is torque calculated?
Torque = Force × Distance
Torque = Mass × Acceleration
Torque = Force / Distance
Torque = Mass × Velocity
Which of the following is an example of a second-class lever?
Scissors
Wheelbarrow
Tweezers
Fishing rod
What is the mechanical advantage of a lever?
The ratio of the load force to the effort force.
The ratio of the effort force to the load force.
The sum of the load force and the effort force.
The difference between the load force and the effort force.
In which type of lever is the effort applied between the fulcrum and the load?
First-class lever
Second-class lever
Third-class lever
Fourth-class lever
If a lever has a mechanical advantage of 4, what does this mean?
The effort force is four times greater than the load force.
The load force is four times greater than the effort force.
The lever is four times longer than the load.
The lever is four times shorter than the load.
Which of the following is an application of levers in everyday life?
A seesaw
A bicycle
A pulley
A spring
What is the unit of torque in the International System of Units (SI)?
Newton
Joule
Newton-metre
Watt
Which of the following statements is true about a third-class lever?
It always provides a mechanical advantage greater than 1.
It always provides a mechanical advantage less than 1.
It always provides a mechanical advantage equal to 1.
It does not provide any mechanical advantage.
If a force of 10 N is applied at a distance of 2 metres from the pivot, what is the torque?
5 Nm
10 Nm
20 Nm
30 Nm
Which of the following is NOT a type of lever?
First-class lever
Second-class lever
Third-class lever
Fourth-class lever
What is the main advantage of using a lever?
It reduces the amount of work done.
It increases the speed of the load.
It allows a smaller effort to move a larger load.
It decreases the distance the load is moved.
Which of the following is an example of a first-class lever?
Nutcracker
Crowbar
Stapler
Tongs
If the distance from the fulcrum to the effort is 3 metres and the distance from the fulcrum to the load is 1 metre, what is the mechanical advantage?
1
2
3
4
