QUIZZ PHYSICS-1 (CH6) -OSAMA AL-SALEH
Physics Quiz: Circular Motion and Forces
Test your knowledge of physics concepts related to circular motion and forces with this engaging quiz designed for students and enthusiasts alike. Challenge yourself with a variety of questions focused on tension, speed, and friction in circular scenarios!
- 10 Multiple Choice Questions
- Learn about tension, speed, and forces in circular motion
- Ideal for students and physics lovers
A 3 kg mass on the end of a string rotates in a circular motion on a horizontal frictionless table. The mass has a constant speed of 3 m/s and the radius of the circle is 90 cm. The magnitude of the resultant force acting on the mass (in Newton) is:
A) 30N
B) 0.30N
C) 40N
D) 0.40N
A mass M on the end of a string rotates in a circular motion on a horizontal frictionless table. The mass has a constant speed of V and the radius of the circle is R. What is the magnitude of the resultant force acting on the mass when if the radius of string triple?
A) F2=3F1
B) F2=F1
C) F2=9F1
D) F2=F1/3
A mass M on the end of a string rotates in a circular motion on a horizontal frictionless table. The mass has a constant speed of V and the radius of the circle is R. What is the magnitude of the resultant force acting on the mass, when if the velocity of mass became 4V ?
A) F2=4F1
B) F2=1/4F1
C) F2=16F1
D) F2=1/16F1
A 2 kg ball is attached to a branch by a rope that is 4m long. The ball is swung in an arc forming a pendulum. The speed of the ball at its lowest point is 7 m/s. What is the tension in the rope at its lowest point in the swing?
A) 4.5N
B) 20.0N
C) 52.7N
D) 44.5N
The maximum tension that a 0.50 m string can tolerate is 14 N , A 0.25-kg ball attached to this string is being whirled in a vertical circle. What is the maximum speed the ball can have (a) the top of the circle
A) 5.74 m/s
B) 3.11
C) 7.94 m/s
D) 3.66 m/s
A string 0.5 m long is used to a 1-kg stone in a vertical circle at a uniform velocity of 5 m/s , What is the tension in the string when the stone is at the BOTTOM of the circle
A) 60N
B) 10N
C) 30N
D) 15N
A flat (unbanked) curve on a highway has a radius of 240 m. A car successfully rounds the curve at a speed of 33 m/s.what is the coefficient of static friction between the car's tires and the road surface.
A) 0.25
B) 0.46
C) 0.17
D) 0.75
A car travels around a curve which has a radius of 316 m. The curve is banked at θ=31°, and the coefficient of static friction between the tires and the road is 0.78. At what speed can the car travel around the curve without skidding?
A) 77.3 m/s
B) 81.6 m/s
C) 89.7 m/s
D) 44.2 m/s
For a car traveling with speed 14m/s around a curve of radius 50m , calculate the angle θ at which a road should be banked so that no friction is required for an expressway off-ramp curve.
A) θ=51
B) θ=45
C) θ=39
D) θ=22
A mass (M) is suspended by a string of radius (r=2m) , find the speed of the mass if it to be rotated as conical pendulum makes an angle 47 with the vertical.
A) 21.4 m/s
B) 4.7 m/s
A) 41.2 m/s
D) 15.3 m/s
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