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WorksheetsVEX Unit 7 Speed, Power, Torque, and DC Motors
Total questions: 10
Worksheet time: 5mins
What is the name of the field dealing with the study of the bodies in motion?
Statics
Classical Mechanics
Physics
Aeronautics
What is the equation to calculate the speed of an object?
Velocity / Distance
Velocity / Time
Rotational Cycles / Distance
Distance / Time
Which of the following is not used in calculating Rotational Speed?
Time
Degrees
Rotational Cycles
Distance
What is the speed of a robot that travels across a 12 ft field in 4 seconds?
3 ft/s
6 ft/s
8 ft/s
16 ft/s
Which of the following parameters are not used to calculate Torque?
Force
Distance
Velocity
Diameter
What is the torque of a 3 ft tall mechanical arm holding a 4 pound ball 2 ft away from its base?
6 ft-lbs
8 ft-lbs
12 ft-lbs
24 ft-lbs
_______ is the rate at which work is performed
Kinetic Energy
Power
Acceleration
Velocity
As the speed of a motor increases, the _______ decreases.
Force
Acceleration
Velocity
Torque
Which of the following is not a key motor characteristic when designing robots?
Stall Torque
Free Speed
Free Voltage
Stall Current
If a motor is spinning at 50 RPM at 6 Volts, what would be the speed if the voltage was increased to 9 Volts?
25 RPM
50 RPM
75 RPM
100 RPM
