Are You Ready To Take The Physics Practice Questions?

42 Questions | By Qtkhmerqueen143 | Updated: Mar 21, 2022 | Attempts: 827

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Are You Ready To Take The Physics Practice Questions? - Quiz

Questions and Answers

1.

Science is a body of knowledge that
- A.
  
  Condenses knowledge into testable laws
- B.
  
  Describes order in nature
- C.
  
  Is an ongoing activity of humans
- D.
  
  All of the above choices are correct
- E.
  
  None of the above choices are correct
2.

As an object freely falls downward, its
- A.
  
  Acceleration increases
- B.
  
  Velocity increases
- C.
  
  Both of these
- D.
  
  None of these
3.

A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is jerked quickly. This best demonstrates that
- A.
  
  The milk carton has inertia
- B.
  
  The milk carton has no acceleration
- C.
  
  There is an action-reaction pair of forces
- D.
  
  Gravity tends to hold the milk carton secure
- E.
  
  None of these
4.

The gain in speed each second for a freely-falling object is about
- A.
  
  0
- B.
  
  20 m/s
- C.
  
  5 m/s
- D.
  
  10 m/s
- E.
  
  Depends on the initial speed
5.

A package falls of a truck that is moving at 30 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is
- A.
  
  More than 30 m/s
- B.
  
  Zero
- C.
  
  Less than 30 m/s but larger than zero
- D.
  
  About 30 m/s
- E.
  
  More information is needed for an estimate
6.

According to Newton's law of inertia, a rail road train in motion should continue going forever even if its engine is turned off. We never observe this because railroad trains.
- A.
  
  Are much too heavy
- B.
  
  Move too slowly
- C.
  
  Must go up and down hills
- D.
  
  Always have forces that oppose their motion
7.

A scientific statement that can never be changed is a scientific
- A.
  
  Principle
- B.
  
  Theory
- C.
  
  Hypothesis
- D.
  
  Law
- E.
  
  None of the above choices are correct
8.

If no external forces are acting on a moving object it will
- A.
  
  Continue moving at the same velocity
- B.
  
  Move slower and slower until it finally stops
- C.
  
  Continue moving at the same speed
9.

Galileo's use of inclined planes allowed him to effectively
- A.
  
  Eliminate the acceleration of free fall
- B.
  
  Increase the acceleration beyond that of free fall
- C.
  
  Slow down the acceleration of free fall
- D.
  
  Eliminate friction
10.

The two measurements necessary for calculating average speed are
- A.
  
  Distance and acceleration
- B.
  
  Velocity and distance
- C.
  
  Acceleration and time
- D.
  
  Velocity and time
- E.
  
  Distance and time
11.

A horse gallops a distance of 10 kilometers in a time of 30 minutes. It's average speed is
- A.
  
  15 km/h
- B.
  
  30 km/h
- C.
  
  20 km/h
- D.
  
  40 km/h
12.

A car maintains a constant velocity of 100 km/hr for 10 seconds. During this interval it acceleration is
- A.
  
  Zero
- B.
  
  1000 km/hr
- C.
  
  110 km/hr
- D.
  
  10 km/hr
13.

A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected the force required to keep the puck sliding at constant velocity is
- A.
  
  Equal to its weight divided by its mass
- B.
  
  Zero
- C.
  
  Equal to the product of its mass times its weight
- D.
  
  Equal to its weight
14.

Twelve seconds after starting from rest, an object falling freely will have a speed of
- A.
  
  50 m/s
- B.
  
  100 m/s
- C.
  
  10 m/s
- D.
  
  More than 100 m/s
15.

If an object moves with constant acceleration, its velocity must
- A.
  
  Be constant also
- B.
  
  Change by the same amount each second
- C.
  
  Always decrease
- D.
  
  Change b varying amounts depending on its speed
16.

A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always
- A.
  
  Opposite its velocity
- B.
  
  Directed downward
- C.
  
  In the direction of motion
- D.
  
  Directed upward
17.

If a car accelerates form rest at 2 meters per second per second, its speed 3 seconds later will be about
- A.
  
  2 m/s
- B.
  
  6 m/s
- C.
  
  4 m/s
- D.
  
  3 m/s
18.

At on instant an object in free fall is moving downward at 50 meters per second. One second later is speed should be about
- A.
  
  25 m/s
- B.
  
  100 m/s
- C.
  
  55 m/s
- D.
  
  60 m/s
- E.
  
  50 m/s
19.

Starting from rest, the distance a freely-falling object will fall in 1.0 second is about
- A.
  
  10 m
- B.
  
  2.00 m
- C.
  
  5.0 m
- D.
  
  None of the above
20.

An object falls freely from rest on a planet where the acceleration due to gravity is 20 meters per second squared. After 5 seconds, the object will have a speed of
- A.
  
  20 m/s
- B.
  
  10 m/s
- C.
  
  50 m/s
- D.
  
  5 m/s
- E.
  
  100 m/s
21.

If you drop an object, it will accelerate downward at a rate of 9.8 meters per second per second. If you instead throw it downwards, its acceleration (in the absence of air resistance and after it leaves your hand) will be
- A.
  
  Greater than 9.8 meters per second per second
- B.
  
  Less than 9.8 meters per second per second
- C.
  
  9.8 meters per second per second
22.

If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting position is about
- A.
  
  2 seconds
- B.
  
  20 seconds
- C.
  
  10 seconds
- D.
  
  1 second
- E.
  
  Not enough information to estimate
23.

When a rock thrown straight upwards gets tot he exact top of its path, its
- A.
  
  Velocity is zero and its acceleration is zero
- B.
  
  Velocity is about 10 m/s and its acceleration is zero
- C.
  
  Velocity is zero and its acceleration is about 10 meters per second per second
- D.
  
  Velocity is about 10 m/s and its acceleration is about 10 meters per second per second
- E.
  
  None of these
24.

A ball is thrown upwards. Neglecting air resistance, what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?
- A.
  
  About 80 m/s
- B.
  
  About 60 m/s
- C.
  
  About 110 m/s
- D.
  
  About 100 m/s
- E.
  
  About 50 m/s
25.

Which has a greater mass?
- A.
  
  An automobile battery
- B.
  
  A king-size pillow
- C.
  
  Neither- both have the same