Vehicles

What is the gear ratio of the following train? (1 is input and 2 is output)

• 0.619

• 1.615

• 0.667

• 1.5

When we use gear trains, we can change the speed and force. If the speed is increased, then the force will increase too.

• True

• False

We are driving downhill in a car and want to slow down without using the brakes. Which gear should you use?

• 1st

• 2nd

• 4th

• 5th

We can reverse the movement of our car by using an idler gear.

• True

• False

If we need a fast car, how can we improve it?

• Increasing the gear ratio.

• Decreasing the gear ratio.

• Adding an idler gear.

• Using more fuel.