AR 1.1 - 1.3 Test

Label each part by dragging the label ONTO the part it names.

c

d

e

f

g

b

a

Drive Shaft

Screw

Keps Nut

Plastic Spacer

Bearing Flat

Rubber Shaft Collar

60T Gear

What is the purpose of the hand crank in the build?

• To provide stability to the shaft

• To create rotary motion

• To connect the drive shaft to a gear

• To secure a screw and nut

How do the post standoff retainer or bearing flat parts help your build?

• By providing stability to the shaft

• By connecting the drive shaft to a gear

• By securing a screw and nut

• By creating rotary motion

Why are collars inserted along the shaft next to the gear?

• To create rotary motion

• To provide stability to the shaft

• To secure a screw and nut

• To connect the drive shaft to a gear

In what direction do the two outer gears spin?

• In the same direction as the driving gear

• Counterclockwise

• In the opposite direction of the driving gear

• Clockwise

How can you identify the input and output of a mechanical system?

• By the number of output gears

• By the driving and driven gears

• By the direction of the driven gear

• By the purpose of the hand crank

What is the purpose of an idler gear?

• To create rotary motion

• To provide stability to the shaft

• To connect the drive shaft to a gear

• To change the direction of rotation

In the Gear Train image, what direction will the driven gear turn?

• Clockwise, in the opposite direction of the driving gear

• Clockwise, in the same direction as the driving gear

• Counterclockwise, in the same direction as the driving gear

• Counterclockwise, in the opposite direction of the driving gear

What is the goal of Activity 1.2 "On the Move"?

• To learn about the history of motors

• To build and program a motor to spin a gear train

• To study the theory of gear ratios

• To create a presentation about motors

Which of the following is NOT a goal of Activity 1.2 "On the Move"?

• Identify the inputs and outputs through a system

• Assemble, wire, and program a system to complete a task

• Learn about different types of sensors

• Build and program a motor to spin a gear train