 Laws of Motion
3 years ago
rhondawright
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Practice 10 QuestionsShow answers
• Question 1
300 seconds
Q.   A basketball with a mass of 0.60 kg is accelerated with a force of 10.8 N.  If resisting forces are ignored, what is the acceleration of the basketball to the nearest m/s2?
0.06 N
6.48 m/s2
18 N
18 m/s2
• Question 2
300 seconds
Q.    When a space shuttle was launched, the astronauts onboard experienced an acceleration of 29.0 m/s2.  If one of the astronauts had a mass of 60.0 kg, what net force in newtons did the astronaut experience?
1740 m/s2
1740 N
2.07 N
.48 N
• Question 3
300 seconds
Q. Which of the following best describes the velocity of an object?
30 m/s
30 m East
30 m/s East
30 m/s2
• Question 4
900 seconds Q.  The diagram shows a homemade car being pushed with a force of 25 N. The force causes the car to move at a constant speed of 3 m/s. What will happen if the force is changed to 35 N?
The car will move at a constant speed of 13 m/s.
The speed of the car will not change.
The speed of the car will increase.
The speed of the car will decrease to 1 m/s.
• Question 5
900 seconds
Q. A bus travels 20 km in 30 minutes.  What is the average speed of the bus?
20 km/h
30 km/h
40 km/h
50 km/h
• Question 6
900 seconds Q. The diagram below shows two different forces acting on a cyclist riding a bicycle.
The total mass of the cyclist and the bicycle is 100.0 kg.  Based on this information, what is the acceleration of the cyclist?
0.66 m/s2 backward, because the force of the air slows the cyclist down
0.66 m/s2 forward, because the applied force is greater than the force of the air
2.3 m/s2 backward, because the forces are opposite and not equal
2.3 m/s2 forward, because the cyclist's inertia is greater than the force of the air
• Question 7
900 seconds Q. Some students were investigating the speed of a toy car they built.  They performed two trials and recorded their data in the table below.
What was the average speed of the toy car during the two trials to the nearest tenth of a m/s?
.7 m/s
1.4 m/s
12.6 m/s
113.4 m/s
• Question 8
30 seconds Q. A student runs two times around a running path at a local park.  Each lap is 3 km.  The student completes the first lap in 20 minutes.  The student then sits on a bench and rest for 5 minutes before completing the second lap in 25 minutes.  Which graph bests represents the student's motion?
F
G
H
J
• Question 9
900 seconds Q. A car travels at a constant speed of 15 m/s for 2 minutes.  The car increases its speed from 15 to 25 m/s during the next minute and then travels at a constant speed of 25 m/s for 2 more minutes.  Which of the following graphs best represent the car's motion during this 5 minute period?
F
G
H
J
• Question 10
900 seconds
Q. The masses of four vehicles and the net forces acting on them as they enter a highway are recorded in the table.
Which vehicle has the greatest acceleration as it enters the highway?