# Force Review for MQA 3

## Quiz by Monica Bailey

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19 questions
Show answers
• Q1
The diagram below shows two different forces acting on a cyclist riding a bicycle.
2.3 meters per second squared forward, because the cyclist’s inertia is greater than the force of the air
2.3 meters per second squared backward, because the forces are opposite and not equal
0.66 meters per second squared backward, because the force of the air slows the cyclist down
0.66 meters per second squared forward, because the applied force is greater than the force of the air
120s
• Q2
A student graphed the position of a cart during a 7-second time interval. Which statement best describes the cart?
The cart accelerated at a constant rate of approximately 0.8 meters per second squared
The cart was stationary except for a short burst of acceleration of 0.5 meters per second squared
The cart moved at a constant velocity of 0.5 m/s for the entire 7 seconds.
The cart was stationary with a velocity of 0 m/s for the entire 7 seconds.
120s
• Q3
When a space shuttle was launched, the astronauts on-board experienced an acceleration of 29.0 meters per second squared. If one of the astronauts had a mass of 60.0 kg, what net force in newtons did the astronaut experience?
2.07
1740
89
0.48
120s
• Q4
The graph shows distance over time. Which of these situations could be represented by this graph?
A student walks 1.5 km to a friend’s house in 30 minutes. The two students then walk another 1.5 km to school in 30 minutes.
A student walks 1.5 km to a friend’s house in 20 minutes. The two students then walk another 1.5 km to school in 40 minutes.
A student walks 1.5 km to a friend’s house in 40 minutes. The two students then walk another 1.5 km to school in 20 minutes.
A student walks 1.5 km to a friend’s house in 20 minutes. The two students then walk another 1.5 km to school in 60 minutes.
120s
• Q5
A student uses a magnet to move a 0.025 kg metal ball. The magnet exerts a force of 5 N, which causes the ball to begin moving. What is the acceleration of the ball when it begins to move?
5 meters per second squared
5.025 meters per second squared
200 meters per second squared
0.125 meters per second squared
120s
• Q6
What is the difference between the velocity and the speed of an object?
Velocity is the change in distance over time, while speed is the change in velocity over time.
Velocity has a direction associated with it, while speed has no specific direction.
Velocity has no direction associated with it, while speed has a specific direction.
Velocity is the change in speed over time, while speed is the change in distance over time.
120s
• Q7
The diagram shows a sled moving along a smooth, frictionless track. In which sections of the track will the sled experience an unbalanced force?
Sections 1 and 3
Sections 3 and 4
Sections 2 and 3
Sections 2 and 4
120s
• Q8
The list includes six situations. Which objects in the list experience an unbalanced force?
The can, the swing, and the bird
The book, the ball, and the car
The ball, the car, and the bird
The book, the ball, the can, and the swing
120s
• Q9
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?
Coupe
SUV
Sedan
Truck
120s
• Q10
Which of the following best describes the velocity of an object?
30 m/s
30 m/s east
30 meters per second squared
30 m east
120s
• Q11
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 speed of the car will not change.
The car will move at a constant speed of 13 m/s.
The speed of the car will increase.
The speed of the car will decrease to 1 m/s.
120s
• Q12
A bicycle rider is traveling up a hill. When the rider reaches the top of the hill, she stops to rest. Then she travels down the hill. The diagram shows the rider in the three different positions. Which of these correctly describes the potential energy and the kinetic energy of the bicycle rider?
When the rider is at the top of the hill, her potential energy is the greatest, and her kinetic energy is the least.
When the rider goes down the hill, her potential energy increases, and her kinetic energy decreases.
As the rider moves up the hill, her kinetic energy increases, and her potential energy decreases.
As the rider reaches the bottom of the hill, her kinetic energy and her potential energy decrease.
120s
• Q13
An archer shot a 0.06 kg arrow at a target. The arrow accelerated at 5,000 meters per second squared to reach a speed of 50.0 m/s as it left the bow. During this acceleration, what was the net force on the arrow to the nearest newton?
56
50.06
300
3
120s
• Q14
The unusual strength of a glue makes it able to hold a heavy object, or load, as shown in the diagram. If the load exerts a strong downward force, the glue —
destroys the force
exerts an upward force that is equal to the downward force
causes the load to accelerate upward
exerts a stronger downward force
120s
• Q15
A meteor moving 468 km per minute traveling in a south-to-north direction passed near Earth in 2013. Because the meteor was only 45 m wide and was 27,700 km above Earth’s surface, it was not visible without the aid of a telescope. Which statement describes the meteor’s motion?
Its speed was 468 km/s northward.
Its velocity was 7.8 km/s northward.
Its acceleration was 468 kilometers per second squared
Its acceleration was 7.8 kilometers per second squared
120s

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