QUIZZ PHYSICS-1 (CH5) -OSAMA AL-SALEH
Mastering Physics Concepts
Test your knowledge of fundamental physics principles with this engaging quiz designed for learners of all levels. Whether you're a student preparing for exams or just someone interested in refreshing your physics knowledge, this quiz is perfect for you.
Featuring a collection of multiple-choice questions, this quiz covers essential topics including:
- Forces and Motion
- Friction and Acceleration
- Newton's Laws
- Kinetic and Potential Energy
Which of the following is not true about a 500 newton box hanging on a massless rope in static equilibrium
A) The net force is zero
B) The net acceleration is zero
C)The tension in the rope is 500 newtons
D) The net vertical force is zero
E) The net horizontal force is 500 newtons
Base your answer to the following question on the diagram below. Assuming the strings are massless, what is the tension T?
A) 175 N
B) 300 N
C) 450 N
D) 520 N
E) 600 N
A car is moving at 40 m/s. At 10 meters the driver spots a deer on the road and instantly steps on the brakes. If the car is 400 kg how much force must the breaks exert to stop the car in time?
A) 0.5 newtons
B) 80 newtons
C) 160 newtons
D) 3,200 newtons
E) 32,000 newtons
A student that has a mass of 100 kg is standing on a scale in an elevator car. The elevator is accelerating downward at 5 m/s2 in the Earth's gravitational field. The reading on the scale in the elevator is most nearly
A) 150 N
B) 500 N
C) 1000 N
D) 1500 N
E) 50 N
An elevator is moving upwards at a constant velocity of 5 m/s. What is the net acceleration the elevator experiences?
A) 0 m/s2
B) 1/2g
C) g
D) 2g
D) 1/4g
In the frictionless system shown above, all blocks have the same mass, and the entire system is accelerated by an applied force of magnitude F. What is the tension in the cord between blocks B and C?
A) F/3
B) 2F/3
C) F
D) 3F/2
E) 2F
An object with a mass of 2 kg is acted upon by 4 forces, each with a magnitude of 20 N. Which of the following could NOT be the resulting acceleration of the object?
A) 0 m/s2
B) 10 m/s2
C) 20 m/s2
D) 37 m/s2
E) 45 m/s2
A 3 kg sled is pulled across a horizontal surface with a force of 30 N. The coefficient of friction between the surface and the sled is 0.2. What is the sled's acceleration?
A) 4 m/s2
B) 8 m/s2
C) 10 m/s2
D) 12 m/s2
E) 15 m/s2
A shooter on ice fires a gun. She experiences recoil of 2 m/s2 when the bullet is fired with a force 100 newtons. What is the mass of the shooter?
A) 10 kg
B) 20 kg
C) 50 kg
D) 80 kg
E) 100 kg
A horizontal force of 15 N is used to push a 2 kg block along a table top that has a coefficient of friction of 0.15. What is the acceleration of the block?
A) 3 m/s2
B) 6 m/s2
C) 7.5 m/s
D) 8.5 m/s2
E) 10 m/s2
In the figure above, the coefficient of kinetic friction between the block of mass m and the table is 0.5. If the pulley is massless and frictionless, determine the acceleration of the blocks if they are released from rest.
A) 0.5g
B) 0.5g/3
C) 0.6g/3
D) 0.6g
E) 0.7g
An object is being pushed along a horizontal surface by a force of 60 N with an acceleration of 4 m/s2 . The coefficient of kinetic friction between the object and the surface is 0.1. The mass of the object is most nearly
A) 6 kg
B) 12 kg
C) 20 kg
D) 30 kg
E) 60 kg
An object of mass m is sliding on a horizontal surface at constant velocity v. If the coefficient of kinetic friction between the object and the surface is µ, which of the following best describes the force F being applied to the object?
A) of magnitude µmg, in the direction of v.
B) of magnitude µmg, in the direction opposite v.
C) of magnitude µmgv, normal to the surface
D) of magnitude µmg, but the direction cannot be determined.
E) NONE
An 40 kg object is being pushed along a surface at a constant velocity by a force of 80 N. What is the coefficient of kinetic friction between the object and the surface?
A) 0.1
B) 0.2
C) 0.25
D) 0.4
E) 0.5
According to Newton's Third Law,
A) for every action there is a weaker, and opposite, reaction
B) for every action there is an equal, but delayed, reaction
C) for every action there is an equal, and similar, reaction
D) for every action there is an equal, but opposite, reaction
E) for every action there is a weaker, but opposite, reaction
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