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Q 1/31
Score 0
An object moves in a circle of radius 5 meters with a constant speed of 10 meters per second. What is its centripetal acceleration?
120
Q 2/31
Score 0
Which of the following best describes the direction of the net force acting on an object undergoing uniform circular motion?
30
The net force is directed away from the center of the circle.
The net force is directed toward the center of the circle.
The net force is zero.
The net force is directed tangentially to the path of the object.
31 questions
Q.
An object moves in a circle of radius 5 meters with a constant speed of 10 meters per second. What is its centripetal acceleration?
1
120 sec
Q.
Which of the following best describes the direction of the net force acting on an object undergoing uniform circular motion?
2
30 sec
Q.
A Ferris wheel with a radius of 10 meters rotates at a constant speed, completing one full revolution every 30 seconds. What is the angular velocity of the Ferris wheel in radians per second?
3
120 sec
Q.
A cyclist is moving in a circular path with a radius of 20 meters. If the cyclist completes 5 full revolutions in 2 minutes, what is the angular speed of the cyclist in radians per second?
4
120 sec
Q.
A car travels in a circular path with a constant speed of 20 m/s. If the radius of the circular path is 50 meters, what is the car's centripetal acceleration?
5
120 sec
Q.
An athlete is running around a circular track with a radius of 100 meters. If his speed is 10 m/s, what is his centripetal acceleration?
6
120 sec
Q.
What is the centripetal acceleration of a roller coaster car that travels at 15 m/s around a loop with a radius of 25 meters?
7
120 sec
Q.
A cyclist moves around a circular track with a radius of 30 meters. If the cyclist maintains a speed of 12 m/s, what is the magnitude of the centripetal acceleration?
8
120 sec
Q.
9
120 sec
Q.
A bicycle wheel has a radius of 0.4 meters. If it has a linear velocity of 4 meters per second, what is its angular velocity in radians per second?
10
120 sec
Q.
11
120 sec
Q.
In uniform circular motion, which of the following quantities remains constant?
12
30 sec
Q.
What is the direction of the centripetal force acting on an object in uniform circular motion?
13
30 sec
Q.
If the radius of a circular path is doubled while maintaining the same speed, what happens to the centripetal acceleration?
14
60 sec
Q.
In uniform circular motion, how does the net force compare to the centripetal force?
15
30 sec
Q.
Which of the following statements about tangential velocity in uniform circular motion is true?
16
30 sec
Q.
What is the relationship between centripetal acceleration and the speed of the object in uniform circular motion?
17
60 sec
Q.
In uniform circular motion, which of the following is true about the acceleration of the object?
18
30 sec
Q.
In uniform circular motion, if the radius of the circle is tripled while keeping the speed constant, what happens to the centripetal acceleration?
19
60 sec
Q.
Which factor does NOT affect the magnitude of centripetal force on an object moving in a circular path?
20
30 sec
Q.
What is the direction of the centripetal force acting on an object in circular motion?
21
30 sec
Q.
What happens to the centripetal force required for an object moving in a circle if its speed is quadrupled while the radius remains constant?
22
60 sec
Q.
What would happen to a satellite in orbit if the gravitational force acting on it were to suddenly decrease?
23
30 sec
Q.
According to Newton's law of gravitation, what happens to the gravitational force between two objects if the distance between them is halved?
24
60 sec
Q.
Which of the following statements best describes Newton's law of gravitation?
25
120 sec
Q.
If the mass of one of two objects is doubled while the distance between them remains constant, how does the gravitational force between them change?
26
60 sec
Q.
27
120 sec
Q.
According to Newton's law of gravitation, if you were to move to a location where the gravitational force is one-quarter of what it is on the surface of the Earth, how far would you need to be from the center of the Earth?
28
120 sec
Q.
29
60 sec
Q.
A car is traveling in a circular track of radius 50 meters at a constant speed of 20 meters per second. What is the centripetal force acting on the car if its mass is 1000 kg?
30
120 sec
Q.
A 0.5 kg mass is attached to a string and swung in a horizontal circle of radius 2 meters at a constant speed. If the centripetal force needed to maintain this motion is 8 Newtons, what is the speed of the mass?
