HS Unit 4 Motion & Forces Practice Test

Front

What is the formula for calculating Ideal Mechanical Advantage (MA)?

Back

MA = Resistance Force / Effort Force

Front

Define net force.

Back

Net force is the overall force acting on an object when all the individual forces are combined.

Front

What is gravitational pull?

Back

Gravitational pull is the force of attraction between two masses, which depends on their masses and the distance between them.

Front

How do you calculate the mechanical advantage of a simple machine?

Back

Mechanical Advantage (MA) = Resistance Distance / Effort Distance

Front

What is the significance of the direction of net force in motion?

Back

The direction of net force determines the direction in which an object will accelerate.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, Force = Mass x Acceleration (F = ma).

Front

What is the difference between effort force and resistance force?

Back

Effort force is the force applied to a machine, while resistance force is the force exerted by the object being moved.

Front

What does it mean if a machine has a mechanical advantage greater than 1?

Back

It means the machine can lift a heavier load than the input force applied.

Front

What is the role of a simple machine in reducing effort?

Back

A simple machine allows a smaller input force to be used to lift a larger load by changing the direction or distance of the force.

Front

What is the concept of distance in relation to work done?

Back

Work is done when a force causes an object to move a distance in the direction of the force.