1.
Science is a body of knowledge that
A. 
Condenses knowledge into testable laws
B. 
Describes order in nature
C. 
Is an ongoing activity of humans
D. 
All of the above choices are correct
E. 
None of the above choices are correct
2.
As an object freely falls downward, its
A. 
B. 
C. 
D. 
3.
A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is jerked quickly. This best demonstrates that
A. 
The milk carton has inertia
B. 
The milk carton has no acceleration
C. 
There is an action-reaction pair of forces
D. 
Gravity tends to hold the milk carton secure
E. 
4.
The gain in speed each second for a freely-falling object is about
A. 
B. 
C. 
D. 
E. 
Depends on the initial speed
5.
A package falls of a truck that is moving at 30 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is
A. 
B. 
C. 
Less than 30 m/s but larger than zero
D. 
E. 
More information is needed for an estimate
6.
According to Newton's law of inertia, a rail road train in motion should continue going forever even if its engine is turned off. We never observe this because railroad trains.
A. 
B. 
C. 
Must go up and down hills
D. 
Always have forces that oppose their motion
7.
A scientific statement that can never be changed is a scientific
A. 
B. 
C. 
D. 
E. 
None of the above choices are correct
8.
If no external forces are acting on a moving object it will
A. 
Continue moving at the same velocity
B. 
Move slower and slower until it finally stops
C. 
Continue moving at the same speed
9.
Galileo's use of inclined planes allowed him to effectively
A. 
Eliminate the acceleration of free fall
B. 
Increase the acceleration beyond that of free fall
C. 
Slow down the acceleration of free fall
D. 
10.
The two measurements necessary for calculating average speed are
A. 
Distance and acceleration
B. 
C. 
D. 
E. 
11.
A horse gallops a distance of 10 kilometers in a time of 30 minutes. It's average speed is
A. 
B. 
C. 
D. 
12.
A car maintains a constant velocity of 100 km/hr for 10 seconds. During this interval it acceleration is
A. 
B. 
C. 
D. 
13.
A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected the force required to keep the puck sliding at constant velocity is
A. 
Equal to its weight divided by its mass
B. 
C. 
Equal to the product of its mass times its weight
D. 
14.
Twelve seconds after starting from rest, an object falling freely will have a speed of
A. 
B. 
C. 
D. 
15.
If an object moves with constant acceleration, its velocity must
A. 
B. 
Change by the same amount each second
C. 
D. 
Change b varying amounts depending on its speed
16.
A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always
A. 
B. 
C. 
In the direction of motion
D. 
17.
If a car accelerates form rest at 2 meters per second per second, its speed 3 seconds later will be about
A. 
B. 
C. 
D. 
18.
At on instant an object in free fall is moving downward at 50 meters per second. One second later is speed should be about
A. 
B. 
C. 
D. 
E. 
19.
Starting from rest, the distance a freely-falling object will fall in 1.0 second is about
A. 
B. 
C. 
D. 
20.
An object falls freely from rest on a planet where the acceleration due to gravity is 20 meters per second squared. After 5 seconds, the object will have a speed of
A. 
B. 
C. 
D. 
E. 
21.
If you drop an object, it will accelerate downward at a rate of 9.8 meters per second per second. If you instead throw it downwards, its acceleration (in the absence of air resistance and after it leaves your hand) will be
A. 
Greater than 9.8 meters per second per second
B. 
Less than 9.8 meters per second per second
C. 
9.8 meters per second per second
22.
If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting position is about
A. 
B. 
C. 
D. 
E. 
Not enough information to estimate
23.
When a rock thrown straight upwards gets tot he exact top of its path, its
A. 
Velocity is zero and its acceleration is zero
B. 
Velocity is about 10 m/s and its acceleration is zero
C. 
Velocity is zero and its acceleration is about 10 meters per second per second
D. 
Velocity is about 10 m/s and its acceleration is about 10 meters per second per second
E. 
24.
A ball is thrown upwards. Neglecting air resistance, what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?
A. 
B. 
C. 
D. 
E. 
25.
Which has a greater mass?
A. 
B. 
C. 
Neither- both have the same