Physics Semester 1 Review

Front

Which of the following has the greatest acceleration? a car traveling at 20 miles per hour, a car traveling at 60 miles per hour, a ball rolling down an incline, a rock falling off of a desk

Back

a rock falling off of a desk

Front

A cart rolls down an inclined plane with constant speed. Which arrow represents the direction of frictional force? Options: A, B, C, D

Back

D

Front

How long will it take a running horse to travel 260 m and attain a speed of 12 m/s from rest?

Back

43 seconds

Front

A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?

Back

For every action there is an equal and opposite reaction.

Front

What is the speed of the object in this graph?

Back

2.2 m/s

Front

Kinetic energy can be described as

Back

energy of motion

Front

Which is the best example of an object with only potential energy? Options: water being poured out of a pitcher, a ball being thrown across a field, a boulder resting on top of a cliff, a boat sailing through the water

Back

a boulder resting on top of a cliff

Front

At which point in the roller coaster's journey is its potential energy the greatest? (Positions: W, X, Y, Z)

Back

Z

Front

According to Newton’s Law of Inertia, an object that is moving will change its motion only if what kinds of forces act on it?

Back

Unbalanced forces

Front

A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart? Balanced Forces, Constant Speed, Balanced Forces, Acceleration, Unbalanced Forces, Constant Speed, Unbalanced Forces, Acceleration?

Back

Balanced Forces, Constant Speed