POE Midterm Exam 24_25

Front

What is the output of the following operation?

Back

250.0

Front

What is the gear ratio if the motor is turning a gear with 36 teeth and it drives a gear with 12 teeth?

Back

1:3

Front

How much force is required to lift a 125 Newton load ideally?

Back

31.25 N

Front

What is the gear ratio when the motor drives a gear with 36 teeth and a driven gear with 12 teeth?

Back

3:1

Front

Which statement checks if a is equal to b?

Back

if a == b

Front

What is the formula for calculating gear ratio?

Back

Gear Ratio = Number of Teeth on Driven Gear / Number of Teeth on Driving Gear

Front

Define 'force' in physics.

Back

Force is an interaction that causes an object to change its velocity, measured in Newtons (N).

Front

What does 'N' stand for in the context of force?

Back

N stands for Newton, the unit of force in the International System of Units (SI).

Front

What is the significance of gear ratios in mechanical systems?

Back

Gear ratios determine the speed and torque of the output gear compared to the input gear.

Front

How do you calculate the output speed of a gear system?

Back

Output Speed = Input Speed x (Number of Teeth on Input Gear / Number of Teeth on Output Gear)