The slope at a point on a position-versus-time graph of an object is the __________.

object's instantaneous velocity at that point

object's acceleration at that point

object's average velocity at that point

Which of the following is an example of uniform motion?

A hockey puck sliding in a straight line at a constant speed

A ball dropped from the top of a building

A person at rest starts running in a straight line in a fixed direction

A car going around a circular track at a constant speed

The area under a velocity-versus-time graph of an object is __________.

the object's acceleration at that point

the distance traveled by the object

the object's speed at that point

If an object is speeding up, __________.

its acceleration can be positive or negative depending on the direction of motion

A 1-pound ball and a 100-pound ball are dropped from a height of 10 feet at the same time. In the absence of air resistance, __________.

the 100-pound ball wins the race

There's not enough information to determine which ball wins the race.

A student at the top of a building of height h throws ball A straight upward with speed v0 and throws ball B straight downward with the same initial speed. Compare the ball's accelerations, both direction and magnitude, immediately after they leave her hand. Is one acceleration larger than the other? Or are the magnitudes equal?

One acceleration is larger than the other.

A student at the top of a building of height h throws ball A straight upward with speed v0 and throws ball B straight downward with the same initial speed. Compare the final speeds of the balls as they reach the ground.

One speed is larger than the other.

When is the average velocity of an object equal to the instantaneous velocity?

only when the velocity is decreasing at a constant rate

only when the velocity is increasing at a constant rate

An object is moving with constant non-zero acceleration in the + x direction. The position versus time graph of this object is

a straight line making an angle with the time axis.

If the velocity versus time graph of an object is a horizontal line, the object is

moving with constant non-zero acceleration.

An object is moving with constant non-zero velocity in the + x direction. The position versus time graph of this object is

a straight line making an angle with the time axis

The motions of a car and a truck along a straight road are represented by the velocity-time graphs in the figure. The two vehicles are initially alongside each other at time t = 0. At time T , what is true of the distances traveled by the vehicles since time t = 0?

The truck will have travelled further than the car.

They will have traveled the same distance.

The car will have travelled further than the truck.

From the edge of a roof top you toss a green ball upwards with initial speed v 0 and a blue ball downwards with the same initial speed. Air resistance is negligible. When they reach the ground below

the two balls will have the same speed.

the blue ball will be moving faster than the green ball.

the green ball will be moving faster than the blue ball.

A rock from a volcanic eruption is launched straight up into the air with no appreciable air resistance. Which one of the following statements about this rock while it is in the air is correct?

The acceleration is downward at all points in the motion.

Throughout the motion, the acceleration is downward, and the velocity is always in the same direction as the acceleration.

The acceleration is downward at all points in the motion except that is zero at the highest point.

On the way up, its acceleration is downward and its velocity is upward, and at the highest point both its velocity and acceleration are zero.

On the way down, both its velocity and acceleration are downward, and at the highest point both its velocity and acceleration are zero.

Suppose that a car traveling to the east (+ x direction) begins to slow down as it approaches a traffic light. Which statement concerning its acceleration must be correct?

Its acceleration is in the - x direction.

Its acceleration is in the + x direction.

Its acceleration is decreasing in magnitude as the car slows down.

A ball is thrown downward in the absence of air resistance. After it has been released, which statement(s) concerning its acceleration is correct? (There could be more than one correct choice.)

Its acceleration is constantly decreasing.

Its acceleration is greater than g

Its acceleration is constantly increasing.

If the position versus time graph of an object is a horizontal line, the object is

moving with constant non-zero speed.

moving with constant non-zero acceleration.

Under what condition is average velocity equal to the average of the object's initial and final velocity?

This can occur only when the velocity is zero.

The acceleration must be constantly decreasing.

The acceleration must be constantly increasing.

This can only occur if there is no acceleration.

Suppose that an object travels from one point in space to another. Make a comparison between the magnitude of the displacement and the distance traveled by this object.

The displacement is either less than or equal to the distance traveled.

The displacement is always equal to the distance traveled.

The displacement can be either greater than, smaller than, or equal to the distance traveled.

The displacement is either greater than or equal to the distance traveled.

Which of the following situations is impossible ?

An object has constant non-zero velocity and changing acceleration.

An object has zero velocity but non-zero acceleration.

An object has velocity directed east and acceleration directed west.

An object has constant non-zero acceleration and changing velocity.

An object has velocity directed east and acceleration directed east.

What is true about B and D?

They have different components and are not the same vectors.

They have the same components but are not the same vectors.

When setting up projectile motion questions, which of the following characteristics of projectile motion are important to keep in mind? Check all that apply.

Although the horizontal and vertical motions of a projectile are independent, they are connected through the time ΔtΔt that the object is in the air.

Projectile motion is made up of two independent motions: uniform motion at constant velocity in the horizontal direction and free-fall motion in the vertical direction.

Projectile motion is the motion of an object that moves in two dimensions under the influence of gravity and air resistance.

The speed at which the package hits the ground is really fast! If a package hits the ground at such a speed, it can be crushed and also cause some serious damage on the ground. Which of the following would help decrease the speed with which the package hits the ground?

Decrease the plane's speed and height

Increase the plane's speed and height

Physics Semester 1 Review

Authored by Keyo Vue

Physics

11th Grade

NGSS covered

Used 2+ times

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191 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A car skids to a halt to avoid hitting an object in the road. Select the correct motion diagram of the car from the time the skid begins until the instant the car stops.

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A man rides a bike along a straight road at a constant speed for 5 minmin, then has a flat tire. He stops for 5 minmin to repair the flat, but then realizes he cannot fix it. He continues his journey by walking the rest of the way at a constant speed, which takes him another 10 minmin. Select a correct motion diagram of the man for the entire motion described here.

Tags

CCSS.2.OA.C.3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A jogger running east at a steady pace suddenly develops a cramp. He is lucky: A westbound bus is sitting at a bus stop just ahead. He gets on the bus and enjoys a quick ride home. Use the particle model to draw a motion diagram of the jogger for the entire motion described here. Number the dots in order, starting with zero.

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is Sue's position xx if her home is the origin? Assume the positive direction is to the right.
Express your answer using one significant figure.

3 mi

-3 mi

2 mi

-2 mi

Tags

CCSS.7.NS.A.1B

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is Sue's position xx if the cinema is the origin? Assume the positive direction is to the right.
Express your answer using one significant figure.

-3 mi

3 mi

2 mi

-2 mi

Tags

CCSS.6.NS.C.6C

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An object moves along the x axis during four separate trials. Graphs of position versus time for each trial (with the same scales on each axis) are shown in the figure. During which trial or trials is the object's velocity not constant?

Trial A

Trial B

Trial C

Trial D

Tags

CCSS.8.EE.B.5

MULTIPLE SELECT QUESTION

2 mins • 1 pt

An object moves along the x axis during four separate trials. Graphs of position versus time for each trial (with the same scales on each axis) are shown in the figure. During which trial or trials is the magnitude of the average velocity the largest?

Trial A

Trial B

Trial C

Trial D

Tags

CCSS.8.EE.B.5

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Physics Semester 1 Review

A car skids to a halt to avoid hitting an object in the road. Select the correct motion diagram of the car from the time the skid begins until the instant the car stops.

What is Sue's position xx if her home is the origin? Assume the positive direction is to the right.
Express your answer using one significant figure.

What is Sue's position xx if the cinema is the origin? Assume the positive direction is to the right.
Express your answer using one significant figure.

An object moves along the x axis during four separate trials. Graphs of position versus time for each trial (with the same scales on each axis) are shown in the figure. During which trial or trials is the object's velocity not constant?

An object moves along the x axis during four separate trials. Graphs of position versus time for each trial (with the same scales on each axis) are shown in the figure. During which trial or trials is the magnitude of the average velocity the largest?

An elevator is moving downward when someone presses the emergency stop button. The elevator comes to rest a short time later. After the button has been pressed but before the elevator has stopped, the velocity of the elevator is _, and the acceleration of the elevator is _.

A child throws a baseball directly upward. Immediately after the ball leaves the child's hand, the velocity of the ball is , and the acceleration of the ball is .

A child throws a baseball directly upward. At the very top of the ball's motion (i.e. the point of maximum height), the velocity of the ball is , and the acceleration of the ball is .

Access all questions and much more by creating a free account

Popular Resources on Wayground

Discover more resources for Physics

Physics Semester 1 Review

A car skids to a halt to avoid hitting an object in the road. Select the correct motion diagram of the car from the time the skid begins until the instant the car stops.

What is Sue's position xx if her home is the origin? Assume the positive direction is to the right.Express your answer using one significant figure.

What is Sue's position xx if the cinema is the origin? Assume the positive direction is to the right.Express your answer using one significant figure.

An object moves along the x axis during four separate trials. Graphs of position versus time for each trial (with the same scales on each axis) are shown in the figure. During which trial or trials is the object's velocity not constant?

An object moves along the x axis during four separate trials. Graphs of position versus time for each trial (with the same scales on each axis) are shown in the figure. During which trial or trials is the magnitude of the average velocity the largest?

An elevator is moving downward when someone presses the emergency stop button. The elevator comes to rest a short time later. After the button has been pressed but before the elevator has stopped, the velocity of the elevator is _____, and the acceleration of the elevator is _____.

A child throws a baseball directly upward. Immediately after the ball leaves the child's hand, the velocity of the ball is ____, and the acceleration of the ball is ____.

A child throws a baseball directly upward. At the very top of the ball's motion (i.e. the point of maximum height), the velocity of the ball is ____, and the acceleration of the ball is ____.

Access all questions and much more by creating a free account

Popular Resources on Wayground

Discover more resources for Physics

What is Sue's position xx if her home is the origin? Assume the positive direction is to the right.
Express your answer using one significant figure.

What is Sue's position xx if the cinema is the origin? Assume the positive direction is to the right.
Express your answer using one significant figure.

An elevator is moving downward when someone presses the emergency stop button. The elevator comes to rest a short time later. After the button has been pressed but before the elevator has stopped, the velocity of the elevator is _, and the acceleration of the elevator is _.

A child throws a baseball directly upward. Immediately after the ball leaves the child's hand, the velocity of the ball is , and the acceleration of the ball is .

A child throws a baseball directly upward. At the very top of the ball's motion (i.e. the point of maximum height), the velocity of the ball is , and the acceleration of the ball is .