Conceptual Physics (Summer) Final
- 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- 3.A sheet of paper can be withdrawn from under a container of mild without toppling if the paper is jerked quickly.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.
Each equal your weight
- B.
Each be half your weight
- C.
Add up to be equal to your weight
- 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.
Radio
- 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
Questions: 10 | Attempts: 41151 | Last updated: Mar 22, 2022
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