Moments

What is a moment?

• The turning effect of a force

• The force applied to an object

• The speed of an object in motion

• The distance between two objects

What is the pivot in the context of moments?

• The point where the object is stationary

• The point where the object is lifted

• The point around which the object can rotate

• The point where the force is applied

What does the size of a moment depend on?

• The material of the object

• The size of the force applied and the distance the force acts from the pivot

• The temperature of the object

• The color of the object

What is the equation to calculate the moment of a force?

• M = F / d

• M = F x d

• M = F - d

• M = F + d

What is the principle of moments?

• The total clockwise moment must be less than the total anti-clockwise moment

• The total clockwise moment must be opposite to the total anti-clockwise moment

• The total clockwise moment must be greater than the total anti-clockwise moment

• The total clockwise moment must be equal to the total anti-clockwise moment

What is the purpose of using a longer spanner to undo a nut?

• To increase the distance from the pivot

• To decrease the size of the force

• To decrease the distance from the pivot

• To increase the force needed

What is the equation to calculate the upwards force on the lid?

• F = M x d

• F = M / d

• F = M + d

• F = M - d

What is the lifting force on the lid if the distance from the pivot to the lid is 0.01 m and the horizontal distance from the pivot to the screwdriver handle is 0.15 m, and the person is pushing down with a force of 10 N?

• 30 N

• 15 N

• 20 N

• 25 N

What is the purpose of a screwdriver with a long handle?

• To increase the distance from the pivot

• To decrease the force needed

• To increase the size of the force

• To decrease the distance from the pivot

What is the total anti-clockwise moment if a person sits on one end of a seesaw, 3 m from the pivot, and the box has a weight of 5 N?

• 15 Nm

• 20 Nm

• 10 Nm

• 5 Nm