Download Test A ICP 2nd and 3rd law

Test ICP
2nd and 3rd Laws of Motion
TEST A
1. What is the acceleration of a car that maintains a constant velocity of 100 km/hr for 10 seconds?
a. 0 m/s/s
b. 10 km/hr/s
c. 10 m/s/s
d. 1000 km/hr/s
2. If a free falling object were somehow equipped with a speedometer, its speed reading would
increase each second by about (no air resistance)
a. 5 m/s
b. 10 m/s
c. 15 m/s
d. A variable amount
e. Depends on its initial speed
3. If an object falls with constant acceleration, the velocity of the object must
a. Be constant also.
b. Continually change by the same amount each second.
c. Continually change by varying amounts depending on its speed.
d. Continually decrease.
e. None of these.
4. A car accelerates from rest at 2 m/s/s. What is its speed 3 seconds after the car starts moving?
a. 2 m/s
b. 3 m/s
c. 4 m/s
d. 6 m/s
e. None of the above
5. It takes 6 seconds for a stone to fall the bottom of a mine shaft. How deep is the mine shaft.
(Air resistance is negligible)
a. About 60 m
b. About 120 m
c. About 180 m
d. More than 200 m
e. None of the above
6. While a car travels around a circular track at a constant speed, its
a. Acceleration is zero.
b. Velocity is zero.
c. Its velocity changes constantly.
d. None of these.
Test ICP
2nd and 3rd Laws of Motion
TEST A
7. If a car increases its velocity from zero to 12 m/s in 3 seconds, its acceleration is
a. 0 m/s/s
b. 4 m/s/s
c. 15 m/s/s
d. 36 m/s/s
e. None of the above
8. Compared to the mass of a certain object on earth, the mass of the same object on the moon is
a. Less
b. More
c. The same
9. A car has a mass of 1000 kg and accelerates at 2 m/s/s. What is the sum of the forces exerted
on the car?
a. 500 N
b. 1000 N
c. 1500 N
d. 2000 N
e. None of the above
10. A tow truck exerts a force of 3000 N on a car accelerating at 2 m/s/s. What is the mass of the
car?
a. 500 kg
b. 1000 kg
c. 1500 kg
d. 3000 kg
e. None of the above
11. A girl pulls on a 10 kg wagon with a constant force of 30 N. What is the wagon’s acceleration in
m/s/s?
a. 0.3
b. 3.0
c. 10
d. 30
e. 300
12. A rock is thrown vertically into the air. At the top of its path, its acceleration is about
a. 0 m/s/s
b. 1 m/s/s
c. 9.8 m/s/s
d. Greater than 10 m/s/s
e. None of the above
Test ICP
2nd and 3rd Laws of Motion
TEST A
13. A baseball player bats a ball with a force of 1000 N. The ball exerts a force on the bat of
a. Less than 1000 N
b. More than 1000 N
c. 1000 N
d. Not enough information – depends on the mass of the ball.
14. A person is attracted towards the center of the earth by a 500 N gravitational force. The force
of attraction of the earth toward the person is
a. Very, very small
b. Very, very large
c. 500 N
d. Not enough information – depends on the mass of the person.
15. A Mack Truck and a Smart Car are traveling at the same speed and have a head-on collision. The
impact force is greatest on the
a. Mack Truck
b. Smart Car
c. The same for both
d. Not enough information – depends on the mass of the car and the truck.
16. The Mack Truck and the Smart Car are traveling at the same speed and have a head-on collision.
The vehicle that undergoes the greatest change in velocity will be the
a. Smart Car
b. Mack Truck
c. Both will experience the same change in velocity.
17. A car traveling at 100 km/hr strikes an unfortunate bug and splatters it across the windshield.
The force of impact is greater on the
a. Bug
b. Car
c. Is the same for both.
d. Not enough information – depends on the mass of the bug and the car.
Test ICP
2nd and 3rd Laws of Motion
TEST A
KEY
1. What is the acceleration of a car that maintains a constant velocity of 100 km/hr for 10 seconds?
a. 0 m/s/s ****
b. 10 km/hr/s
c. 10 m/s/s
d. 1000 km/hr/s
2. If a free falling object were somehow equipped with a speedometer, its speed reading would
increase each second by about (no air resistance)
a. 5 m/s
b. 10 m/s****
c. 15 m/s
d. A variable amount
e. Depends on its initial speed
3. If an object falls with constant acceleration, the velocity of the object must
a. Be constant also.
b. Continually change by the same amount each second. ****
c. Continually change by varying amounts depending on its speed.
d. Continually decrease.
e. None of these.
4. A car accelerates from rest at 2 m/s/s. What is its speed 3 seconds after the car starts moving?
a. 2 m/s
b. 3 m/s
c. 4 m/s
d. 6 m/s ****
e. None of the above
5. It takes 6 seconds for a stone to fall the bottom of a mine shaft. How deep is the mine shaft.
(Air resistance is negligible)
a. About 60 m
b. About 120 m
c. About 180 m ****
d. More than 200 m
e. None of the above
6. While a car travels around a circular track at a constant speed, its
a. Acceleration is zero.
b. Velocity is zero.
Test ICP
2nd and 3rd Laws of Motion
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8.
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10.
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12.
13.
TEST A
c. Its velocity changes constantly. ******
d. None of these.
If a car increases its velocity from zero to 12 m/s in 3 seconds, its acceleration is
a. 0 m/s/s
b. 4 m/s/s ****
c. 15 m/s/s
d. 36 m/s/s
e. None of the above
Compared to the mass of a certain object on earth, the mass of the same object on the moon is
a. Less
b. More
c. The same ****
A car has a mass of 1000 kg and accelerates at 2 m/s/s. What is the sum of the forces exerted
on the car?
a. 500 N
b. 1000 N
c. 1500 N
d. 2000 N ****
e. None of the above
A tow truck exerts a force of 3000 N on a car accelerating at 2 m/s/s. What is the mass of the
car?
a. 500 kg
b. 1000 kg
c. 1500 kg ****
d. 3000 kg
e. None of the above
A girl pulls on a 10 kg wagon with a constant force of 30 N. What is the wagon’s acceleration in
m/s/s?
a. 0.3
b. 3.0 ****
c. 10
d. 30
e. 300
A rock is thrown vertically into the air. At the top of its path, its acceleration is about
a. 0 m/s/s
b. 1 m/s/s
c. 9.8 m/s/s ******
d. Greater than 10 m/s/s
e. None of the above
A baseball player bats a ball with a force of 1000 N. The ball exerts a reaction force of
a. Less than 1000 N
b. More than 1000 N
Test ICP
2nd and 3rd Laws of Motion
14.
15.
16.
17.
TEST A
c. 1000 N ****
A person is attracted towards the center of the earth by a 500 N gravitational force. The force
of attraction of the earth toward the person is
a. Very, very small
b. Very, very large
c. 500 N *****
A Mack Truck and a Smart Car are traveling at the same speed and have a head-on collision. The
impact force is greatest on the
a. Mack Truck
b. Smart Car
c. The same for both ****
The Mack Truck and the Smart Car are traveling at the same speed and have a head-on collision.
The vehicle that undergoes the greatest change in velocity will be the
a. Smart Car***
b. Mack Truck
c. Both will experience the same change in velocity.
A car traveling at 100 km/hr strikes an unfortunate bug and splatters it across the windshield.
The force of impact is greater on the
a. Bug
b. Car
c. Is the same for both. ****