Semester 1 Review Physical Science

Front

What is the equation for velocity?

Back

Velocity = Distance / Time

Front

What is mechanical advantage?

Back

Mechanical advantage is the ratio of the output force exerted by a machine to the input force applied to it.

Front

What is the force exerted by a baseball on a bat when hit with a force of 100 Newtons?

Back

100 Newtons, opposite direction

Front

What is effort (input) force?

Back

The force required by a machine in order to accomplish work (the force you put on the machine).

Front

What is the formula for calculating velocity?

Back

Velocity = Change in Position / Change in Time

Front

What is the definition of work in physics?

Back

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

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help lift objects.

Front

What does it mean if an object is in motion?

Back

An object is in motion if its position changes relative to a reference point.

Front

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

Back

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