Robotics Unit 3 Review

On a gear, the fulcrum is:

• the center of the gear

• the diameter of the gear

• the teeth of the gear

• the radius of the gear

How can you increase the torque supplied by the Vex motors?

• Change the PWM value of the motor

• Increase the speed of the robot

• Increase the size of the wheels

• Change the gear ratio

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-1

When using gear trains in a robot, trade-offs must be made. If the robot needs to increase torque, there will be a proportional trade-off in what?

• Weight

• Friction

• Speed

• Wheel Radius

Tags

CCSS.8.EE.C.7B

Velocity can be defined as:

• distance traveled divided by the time it took

• how fast something is changing speeds

• displacement traveled divided by the time it took

• the same as speed

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

A merry-go-round makes 24 revolutions during a 3 minute ride. What is its rotational speed in RPM?

• 72 RPM

• 8 RPM

• 3 RPM

• 24 RPM

Tags

CCSS.4.MD.A.2

A motor works because of thousands of wire loops called:

• armatures

• poles

• windings

• magnets

Tags

NGSS.HS-PS2-5

The part of the motor that turns is typically called the:

• brushes

• field coils

• rotor

• stator

Acceleration is defined as the change in:

• velocity divided by the time it took

• location

• speed

• distance divided by the time it took

Tags

CCSS.6.NS.C.5

Accelerations are produced by:

• masses

• forces

• velocities

• speeds

Tags

NGSS.MS-PS2-2

The BaseBot is propelled forward when the wheels:

• roll

• turn

• spin

• slip