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35 questions
Provided is a diagram showing forces on a box. Given the forces being applied from the left and right sides of the box, the box will -
move at a constant rate to the left.
move at a constant rate to the right.
accelerate to the left.
accelerate to the right.
The graph shows the distance traveled by a ball over a certain amount of time. According to the graph, between 2 and 4 seconds the ball was -
traveling at a constant speed.
Increasing its speed.
changing its direction.
remaining at rest.
Which of the following examples accurately describes an object that is accelerating?
A ball sitting motionless on the floor.
An airplane moving at 500 kilometers per hour.
A car slows down to turn a sharp corner.
A bike moving backward at 3 meters per second.
If a car is moving on a highway at 70 kilometers per hour, going south, and then turns to travel 70 kilometers per hour, going east, what happens to its speed and velocity?
Speed - changing, Velocity - constant
Speed - constant, Velocity - changing
Speed - constant, Velocity - constant
Speed - changing, Velocity - changing
Which measurements are necessary for determining both the speed and velocity of a moving object?
Distance, time, and direction
Direction, displacement, and distance
Distance, direction, and acceleration
Direction, time, and acceleration
The following data describes the motion of a car over a three minute period. Which of the following statements regarding the car’s motion is true?
The velocity of the car changed, but not the speed.
The speed of the car changed, but not the velocity.
The velocity and the speed of the car changed.
The velocity and the speed of the car stayed the same.
According to Newton’s first law of motion, which of the following objects will change its motion?
A bike rider on a smooth and level road, pedaling at a constant rate.
A train pulling on another train, each with the same amount of force.
A chair sitting on the floor with balanced forces acting in opposite directions.
A ball rolling across the floor with friction acting in the opposite direction.
A wooden sphere is at rest on a level surface. Which of the following combinations of forces will most likely cause a change in the position of the sphere?
A graph of the distance traveled by a student over a certain amount of time is provided. Which of the following accurately describes the student’s average speed?
3.0 m/s
4.0 m/s
5.0 m/s
6.0 m/s
A 70 kg adult and a 35 kg child face each other on ice skates. According to Newton’s laws of motion, what will happen if the two skaters push against each other?
The adult will move backward, but the child will not move.
The adult will not move, but the child will move backward.
They will both move backward at the same speed.
They will both move backward, but the child will move at a faster speed.
A rising hot air balloon is acted on by a force pulling it upward and by the force of gravity pulling it downward. According to Newton’s law of inertia, what will happen to the balloon when the force of gravity equals the upward force?
It will stop moving.
It will rise faster.
Its motion will be constant.
It will move toward the ground.
When the air is release from a balloon, the air moves out one end and the balloon moves in the other direction. Which statement does this situation best illustrate? (8.6C)
What goes up must come down.
For every action there is an equal and opposite reaction.
The shape and size of an object affect air resistance.
The acceleration due to Earth’s gravity is 9.8 m/s2.
Which graph best represents a car traveling down the freeway at a constant speed? (6.8D)
a
b
c
d
A spring scale is used to pull each of the four objects. Based on the information provided, which object experiences the greatest acceleration when pulled with 8 N of force? (8.6A)
Object R
Object S
Object T
Object U
Javelinas need strong leg muscles to help provide enough force for them to accelerate to high speeds. This fast movement can help Javelinas escape from predators and reach the safety of the pack. If a Javelina runs 42 meters in 6 seconds, what is its average speed? (6.8C)
6 m/s
7 m/s
48 m/s
252 m/s
Is a book sitting on a table an example of Newton's Third Law of Motion? Explain.
Yes, because objects at rest tend to stay at rest
Yes, because the action is the downward pull of gravity on the book, and the reaction is the upward push of the table, which holds the book in place.
No. This is not an example of Newton's Third Law of Motion.
Yes, because F = ma.
Safety restraints are needed in vehicles to stop the forward motion of the driver and passengers when the vehicle comes to a sudden stop. What explains this?
Acceleration
Gravity
Inertia
Magnetism
What property determines how much inertia an object has?
texture
boiling point
color
mass
If the canoe slows down, you know that
the forces acting on it are unbalanced.
there are no forces acting on it.
the forces acting on it are equal and opposite.
only one force is acting on it.
When a space shuttle blasts off from its launching pad, the rockets expel exhaust at a very high velocity. This produces an action force, according to Newton's Third Law of Motion. What is the reaction force?
The rocket remains stationary.
The shuttle will lift off the pad as a reaction due to the action of the exhaust gases leaving the rockets.
The ground below the pad will cave in.
The shuttle will not react to the exhaust being expelled.
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