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Study guide for exam 1, Study notes of Physics

The study guide of an exam about physics 1

Typology: Study notes

2024/2025

Uploaded on 04/30/2025

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Exam #1 ---- (motion, inertia, force, acceleration, etc.)
1. A book is at rest on top of a table. Which of the following is correct?
A. There is no force acting on the book.
B. The book has no inertia.
C. There is no force acting on the table.
D. The book is in equilibrium.
E. The inertia of the book is equal to the inertia of the table.
2. The property of a moving object to continue moving is what Galileo called
A. velocity.
B. speed.
C. acceleration.
D. inertia.
E. direction.
3. According to Newton's First Law of Motion,
A. an object in motion eventually comes to a halt.
B. an object at rest eventually begins to move.
C. an object in motion moves in a parabolic trajectory unless acted upon by a net force.
D. an object at rest always remains at rest.
E. an object at rest remains at rest unless acted upon by a net force.
4. If an object is moving, then the magnitude of its ____ cannot be zero.
A. speed
B. velocity
C. acceleration
D. A and B
E. A, B, and C
5. A car initially at rest accelerates in a straight line at 3 m/s². What will be its speed after
2 seconds?
A. 0 m/s
B. 5 m/s
C. 3 m/s
D. 6 m/s
E. 2 m/s
6. A body in free fall in a vacuum
A. will drop the same distance during each second of its fall.
B. will have the same average speed during each second of its fall.
C. will have a constant velocity during each second of its fall.
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Exam #1 ---- (motion, inertia, force, acceleration, etc.)

  1. A book is at rest on top of a table. Which of the following is correct? A. There is no force acting on the book. B. The book has no inertia. C. There is no force acting on the table. D. The book is in equilibrium. E. The inertia of the book is equal to the inertia of the table.
  2. The property of a moving object to continue moving is what Galileo called A. velocity. B. speed. C. acceleration. D. inertia. E. direction.
  3. According to Newton's First Law of Motion, A. an object in motion eventually comes to a halt. B. an object at rest eventually begins to move. C. an object in motion moves in a parabolic trajectory unless acted upon by a net force. D. an object at rest always remains at rest. E. an object at rest remains at rest unless acted upon by a net force.
  4. If an object is moving, then the magnitude of its ____ cannot be zero. A. speed B. velocity C. acceleration D. A and B E. A, B, and C
  5. A car initially at rest accelerates in a straight line at 3 m/s². What will be its speed after 2 seconds? A. 0 m/s B. 5 m/s C. 3 m/s D. 6 m/s E. 2 m/s
  6. A body in free fall in a vacuum A. will drop the same distance during each second of its fall. B. will have the same average speed during each second of its fall. C. will have a constant velocity during each second of its fall.

D. will not be accelerated during its fall. E. will have the same acceleration during each second of its fall.

  1. A bowling ball at a height of 36 meters above the ground is falling vertically at a rate of 12 meters per second. Which of these best describes its fate? A. It will hit the ground in exactly three seconds at a speed of 12 m/s. B. It will hit the ground in less than three seconds at a speed greater than 12 m/s. C. It will hit the ground in more than three seconds at a speed less than 12 m/s. D. It will hit the ground in less than three seconds at a speed less than 12 m/s. E. It will hit the ground in more than three seconds at a speed greater than 12 m/s.
  2. The speedometer in your car tells you the ____ of your car. A. acceleration B. average speed C. instantaneous speed D. velocity E. inertia
  3. To report the ____ of an object, we must specify both its speed and its direction. A. acceleration B. mass C. velocity D. length E. position
  4. Projectile 'A' is fired at an angle of 50° above the horizontal; projectile 'B' is fired with the same speed at an angle of 40° above the horizontal. Assuming level ground and negligible air resistance, which of the following is true? A. 'A' will reach a greater height and have a greater range than 'B'. B. 'A' will reach a greater height and have the same range as 'B'. C. 'A' will reach a greater height and have a shorter range than 'B'. D. 'A' will reach the same height and have the same range as 'B'. E. 'A' will reach the same height and have a shorter range than 'B'.
  5. In the absence of air resistance, the magnitude of the vertical component of a projectile's acceleration A. is constant until the projectile hits the ground. B. always decreases with time until the projectile hits the ground. C. is equal to the magnitude of the horizontal component of the projectile's acceleration. D. increases and/or decreases with time, depending on the projectile's velocity. E. always increases with time until the projectile hits the ground.

E. 1/36 of

  1. When a certain net force is applied to one brick on a frictionless surface, it accelerates at 6 m/s². When the same net force is applied to three bricks that are cemented together, A. they accelerate at 3 m/s². B. they accelerate at 6 m/s². C. they accelerate at 18 m/s². D. they accelerate at 2 m/s². E. they do not accelerate at all.
  2. To accelerate a 6 kg mass at 2 m/s² requires a net force of ____. A. 3 N B. 8 N C. 12 N D. 6 N E. 2 N
  3. A falling object is said to reach terminal speed A. when it lands on the ground. B. when its air resistance equals the force of gravity on it. C. when there is no air resistance acting on it. D. when there is no gravitational force acting on it. E. when it stops falling.
  4. For every action there is an equal and opposite reaction. This is a statement of A. Newton's First Law of Motion. B. Newton's Second Law of Motion. C. Newton's Third Law of Motion. D. Newton's Fourth Law of Motion. E. Newton's Law of Action.
  5. An airplane flying east at an airspeed of 200 km/h has a headwind blowing from the east at 50 km/h. How far will the plane fly relative to the ground in two hours? A. 500 km B. 250 km C. 300 km D. 400 km E. 200 km
  6. An airplane heading west at an airspeed of 100 km/h has a crosswind blowing from the south at 100 km/h. What will be the airplane's speed relative to the ground? A. 0 km/h

B. 71 km/h C. 100 km/h D. 141 km/h E. 200 km/h

  1. ____ are examples of vector quantities. A. Acceleration and time B. Velocity and acceleration C. Volume and velocity D. Mass and volume E. Time and mass