Physics - Fall Semester Review

Front

What is the difference between speed and velocity?

Back

Velocity is speed with a direction.

Front

What describes the motion of a box being pulled with a constant force across a frictionless floor?

Back

The box accelerates constantly.

Front

Which of the following is NOT an example of unbalanced forces?

Back

A car traveling 60 mph constantly.

Front

If a semi-truck applies a 565 N force on a grasshopper, what is the force the grasshopper applies to the truck?

Back

565 N.

Front

At the very top of a ball's path thrown into the air at an angle, its velocity is:

Back

Entirely horizontal.

Front

Define speed in physics.

Back

Speed is the distance traveled per unit of time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity over time.

Front

Explain Newton's First Law of Motion.

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

Define unbalanced forces.

Back

Unbalanced forces are forces that cause an object to accelerate.