NEW
Font size
WorksheetsSK2 Chapter 14 - Torque, Motor and Gear
Total questions: 10
Worksheet time: 5mins
What is torque?
Speed of rotation from pivot
Force acting at a distance from a pivot
Type of gear
Electrical current
What is the formula for torque?
T = m × a
T = F × r
T = V × I
T = P × t
What is the SI unit for torque?
Joule
Watt
Newton Meter
Pascal
What does an electric motor convert?
Mechanical energy to heat
Electrical energy to mechanical rotation
Sound energy to light
Thermal energy to motion
Which current source does a DC motor use?
Alternating current
Solar power
Direct current
Magnetic field
What happens when the distance from the force to the pivot increases?
Torque decreases
Torque remains the same
Torque increases
Force is eliminated
What causes the loop in a motor to rotate continuously?
Heat from the battery
Magnetic field interaction
Friction between wires
Resistance in the circuit
Which gear characteristic increases torque?
Smaller gear with fewer teeth
Larger gear with more teeth
Gears turning in same direction
Gears with equal size
Which type of gear changes linear motion into rotational motion?
Spur gear
Worm gear
Rack and pinion
Bevel gear
What happens when two gears mesh together?
Both rotate in the same direction
Second gear rotates faster
Second gear rotates in opposite direction
First gear stops rotating
