# Conceptual Physics (Summer) Final

40 Questions | Total Attempts: 155  Settings  • 1.
In science, a theory is
• A.

An educated guess

• B.

Less than a fact

• C.

Unchangeable

• D.

A synthesis of a large body of well-tested knowledge

• 2.
A scientific hypothesis may turn out to be right or it may turn out to be wrong. If it is a valid hypothesis, there must be a test for proving it
• A.

Right

• B.

Wrong

• 3.
A sheet of paper can be withdrawn from under a container of mild without toppling if the paper is jerked quickly.  This best demonstrates that
• A.

Gravity tends to hold the milk carton secure

• B.

The milk carton has no acceleration

• C.

The milk carton has inertia

• D.

There is an action-reaction pair of forces

• 4.
When you stand at rest on a pair of bathroom scales, the readings on the scales will always
• A.

• B.

• C.

• 5.
If your automobile runs out of fuel while you are driving, the engine stops but you do not come to an abrupt stop. The concept that most explains why is
• A.

Inertia

• B.

Resistance

• C.

Acceleration

• D.

Gravity

• 6.
If no external forces are acting on a moving object, it will
• A.

Continue moving at the same speed

• B.

Continue moving at the same velocity

• C.

Move slower until it finally stops

• 7.
A horse gallops a distance of 10 kilometers in a time of 30 minutes.  Its average speed is
• A.

40 km/h

• B.

15 km/h

• C.

20 km/h

• D.

30 km/h

• 8.
If a freely falling object were somehow equipped witha speedometer, its speed reading would increase each second by about
• A.

10 m/s

• B.

15 m/s

• C.

A variable amount

• D.

Depends on its initial speed

• 9.
If ia car increases its velocity from zero to 60 km/h in 10 seconds, its acceleration is
• A.

3 km/h/s

• B.

600 km/h/s

• C.

6 km/h/s

• D.

10 km/h/s

• 10.
A ball is thrown upwards and caught when it comes back down. In the presence of air resistance, the speed with which it is caught is always
• A.

The same as the speed it had when thrown upwards

• B.

Less than the speed it had when thrown upwards

• C.

More than the speed it had when thrown upwards

• D.

Impossible to determine

• 11.
A rock weighs 30N on Earth. A second rock weighs 30N on the moon. Which rock has greater mass?
• A.

They have the same mass

• B.

The one on the moon

• C.

The one on Earth

• D.

Not enough information to say

• 12.
An object is propelled along a straight line path by a force.  If the net force were doubled, the object's acceleration would be
• A.

Four times as much

• B.

Half as much

• C.

The same

• D.

Twice as much

• 13.
A car has a mass of 1000 kg and accelerates at 2 meters per second squared.  What is the magnitude of the force exerted on the car?
• A.

2000N

• B.

1000N

• C.

1500N

• D.

500N

• 14.
A player catches a ball.  Consider the action force to be the impact of the ball against the player's glove.  The reaction to this force is the
• A.

Force the glove exerts on the ball

• B.

Friction of the ground against the player's shoes

• C.

Muscular effort in the player's arms

• D.

Player's grip on the glove

• 15.
A Mack truck and a Volkswagen traveling at the same speed have a head-on collision. The vehicle that undergoes the greatest change in velocity will be the
• A.

Same for both

• B.

Volkswagen

• C.

Mack truck

• 16.
Two objects have the same size and shape, but one is much heavier than the other. When they are dropped simultaneously from a tower, they reach the ground at the same time, but the heavier one has a greater
• A.

Acceleration

• B.

Momentum

• C.

Speed

• D.

All of these

• 17.
A 4 kg ball has a momentum of 12 kg m/s. What is the ball's speed?
• A.

3 m/s

• B.

4 m/s

• C.

12 m/s

• D.

48 m/s

• 18.
If you push for a half hour or a whole hour against a stationary wall
• A.

Half as much work is done during the half hour

• B.

Twice as much work is done during the half hour

• C.

No work on the wall is done on either case

• D.

It is impossible to determine how much work is done

• 19.
If you push an object twice as far while applying the same force, you do
• A.

Four times as much work

• B.

The same amount of work

• C.

Twice as much work

• D.

Half as much work

• 20.
If an object is raised twice as high, its potential energy will be
• A.

Four times as much

• B.

Half as much

• C.

Twice as much

• D.

Impossible to determine unless the time is given

• 21.
An object that has kinetic energy must be
• A.

At an elevated position

• B.

Falling

• C.

At rest

• D.

Moving

• 22.
An object may have potential energy because of its
• A.

Acceleration

• B.

Momentum

• C.

Speed

• D.

Location

• 23.
Which of the following is not a transverse wave?
• A.

Light

• B.

Sound

• C.

• D.

X-rays

• 24.
The vibrations of a transverse wave move in a direction
• A.

That changes with speed

• B.

Along the direction of wave travel

• C.

At right angles to the direction of wave travel

• 25.
If a frequency of a certain wave is 10 hertz, it period is
• A.

10 seconds

• B.

100 seconds

• C.

0.1 second

• D.

None of the above

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