Physics MOY

Select the section of the graph where the object had the lowest velocity.

• Time = 0-1.0

• Time = 1.0-2.0

• Time = 3.0-5.0

• Time = 2.0-3.0

An automobile was moving at 10 m/s and accelerated at 2 m/s2 for 10 s. Which of the following was its final speed?

• 20 m/s
• 25 m/s
• 30 m/s
• 35 m/s

Tags

NGSS.HS-PS2-1

A baseball moves 40 meters and is caught 4 seconds later. What is the average velocity of the ball?

• 10 meters per second
• 5 meters per second
• 15 meters per second
• 20 meters per second

A ball attached to a string is moved at constant speed in a horizontal circular path. A target is located near the path of the ball as shown in the diagram.

At which point should the string be released so that the ball will hit the target?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

Complete the following statement using your knowledge of Physics. Enter the correct answer in the box. Newton's 3rd Law of Motion states that when a force is applied to an object, that object exerts a(n)​ ​ (a)   force in the ​ (b)   direction.

• equal
• opposite
• unequal
• neutral
• same

Tags

NGSS.MS-PS2-1

Let the force of the Moon on the Earth be F1. Let the force of the Earth pulling on the Moon be F2. What can you conclude about the forces?

• F1 and F2 are both directed towards the Earth.
• F1 is greater than F2, causing the Moon to move away from the Earth.
• The forces F1 and F2 are unequal in magnitude and act in the same direction.
• The forces F1 and F2 are equal in magnitude and opposite in direction.

Tags

NGSS.HS-PS2-4

In order for work to be done —

• the force and the distance traveled must be in opposite directions.

• the force and the distance traveled can be at any angle to each other.

• the force and the distance traveled must be perpendicular to each other

• the force exerted over a distance must travel in the same direction.

How is work related to energy?

• The work done is equal to the total potential energy.

• The work done is equal to the total kinetic energy.

• The work done is equal to the change in potential energy.

• The work done is equal to the change in energy.

Look at the illustration of a rollercoaster. Which area has the least amount of potential energy?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-2

Rank the amount of kinetic energy at the different positions of a rollercoaster from least to greatest.

• A > B > C > D

• B > C > A > D

• D > A > C > B

• D > C > B > A

Tags

NGSS.HS-PS3-2