WorksheetsQuiz on Forces and Torque
Total questions: 15
Worksheet time: 8mins
What are parallel forces acting in the same direction called?
Unlike parallel forces
Balanced forces
Unbalanced forces
Like parallel forces
What is the resultant force when a body is in equilibrium?
Equal to zero
Less than zero
Undefined
Greater than zero
What is the force called that brings a system to equilibrium?
Couple
Torque
Equilibrant
Resultant force
What is the turning effect of a force about a fixed point called?
Momentum
Equilibrium
Torque
Force
What is the SI unit of torque?
Newton metre (Nm)
Newton (N)
Pascal (Pa)
Joule (J)
What does a couple consist of?
Two equal and like forces
Two unequal and unlike forces
Two equal and unlike forces
Two unequal and like forces
What is the formula for the moment of a couple?
M = F x d
M = F - S
M = F x S
M = F + S
What happens when you apply force at a point far from the fixed edge of a door?
It has no effect
It makes it harder to open
It increases the turning effect
It decreases the turning effect
What is the principle of moments?
Torque is always positive
Forces must be equal
Sum of forces equals zero
Sum of clockwise moments equals sum of anticlockwise moments
What is the effect of a heavier person on a seesaw?
It makes the seesaw unstable
It has no effect
It causes the lighter person to lift
It causes both to balance
What is the direction of moment of a force taken as positive?
Anticlockwise
None of the above
Clockwise
Both directions
What is the effect of applying force closer to the hinges of a door?
Increases torque
Harder to open
Easier to open
No effect
What is the role of gears in a mechanical system?
To increase speed of rotation
To decrease speed of rotation
To create friction
To change torque and transmit power
What is the moment of a force measured by?
Force - distance
Force + distance
Force / distance
Force x distance
What happens when the resultant of two equal and opposite forces is zero?
The body accelerates
The body moves
The body is in motion
The body is in equilibrium
