Gear Ratios Explained with LEGO

What is torque often compared to in terms of force?

• A lifting force

• A twisting force

• A pulling force

• A pushing force

How can we increase the torque output of a small motor using gears?

• By using a smaller gear on the heavy arm

• By using a larger gear on the heavy arm

• By using a larger gear on the motor

• By using a smaller gear on the motor

What does a gear ratio of 5:1 mean?

• The driven gear rotates once for every five rotations of the driver gear

• The driven gear rotates five times for every rotation of the driver gear

• The driver gear rotates five times for every rotation of the driven gear

• The driver gear rotates once for every five rotations of the driven gear

What happens to speed when torque is increased using gears?

• Speed doubles

• Speed increases

• Speed decreases

• Speed remains the same

Why do lower gears in a car transmission increase torque?

• To reduce fuel consumption

• To make the car go faster

• To make the car quieter

• To help the car start moving from a stop