Understanding Torque and Tools

Why is it easier to use a long arm spanner compared to a short one?

• Because it has a longer moment arm

• Because it is lighter

• Because it is more colorful

• Because it is made of stronger material

What is the moment arm in the context of a screwdriver?

• The length of the handle

• The half diameter radius of the screwdriver

• The width of the blade

• The length of the screw

How does a couple of forces affect a spanner?

• It makes the spanner heavier

• It changes the color of the spanner

• It creates a twisting movement

• It reduces the torque

What happens when two forces are applied in the same direction?

• They increase the weight of the object

• They cancel each other out

• They satisfy the principle of moments

• They create a couple

What is required for a system to be in equilibrium?

• The net torque must be zero

• The system must be moving

• The system must be at a high temperature

• The forces must be unequal