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Gear Ratio

Total questions: 11

Worksheet time: 6mins

Name
Class
Date
1.

Let's get the hang of this... Flip your card to C.

a)

no

b)

no

c)

yeah

d)

no

2.

What day is it today?

a)

Monday

b)

Tuesday

c)

Wednesday

d)

Thursday

3.

na na na na na na na na na na na na na na na na ______.

a)

Batman

b)

Waffles

c)

Dog bone

d)

Bike lane

4.

What can gears NOT change?

a)

Speed

b)

Color

c)

Direction

d)

Torque

5.

What is the gear ratio when a 36T and a 12T gear are meshed together?

a)

1 to 1

b)

12 to 1

c)

36 to 3

d)

1 to 3

6.

What is the gear ratio between a 15T gear and a 30T gear?

a)

2/1

b)

1/3

c)

5/3

d)

2/5

7.

Why does the yellow gear travel half the speed of the red gear?

a)

It has the same number of teeth.

b)

It has its own motor.

c)

It has twice as many teeth.

d)

It has half the number of teeth.

8.

TRUE or FALSE: An idler gear in the middle changes the ratio of the outside gears.

a)
FALSE
b)
TRUE
9.

What does an idler gear change?

a)

The size of the gears

b)

The friction in the gear train

c)

The gear ratio

d)

The spacing and direction of motion

10.

What is gear ratio?

a)

All in your imagination.

b)

A comparison between gear teeth that tells you how many times gears will spin.

c)

The name of the next Marvel super hero.

d)

A way to sound smart.

11.

Would the following drivetrain be geared for speed or torque?

a)

Speed

b)

Torque

c)

Neither