AK SCI Review - Physical Sci 2

Quiz
•
Science
•
8th Grade
•
Medium
+2
Standards-aligned
Julie Utley
Used 16+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Newton's Third Law of Motion?
For every action, there is an equal and opposite reaction.
An object at rest stays at rest unless acted upon by an external force.
The acceleration of an object is directly proportional to the net force acting on it.
Energy cannot be created or destroyed.
Answer explanation
Newton's Third Law states that for every action, there is an equal and opposite reaction. This means that forces always occur in pairs, making the first answer choice the correct one.
Tags
AK.SCI.6-8.MS-PS2-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes the relationship between force, mass, and acceleration?
Force is the product of mass and acceleration.
Force is the sum of mass and acceleration.
Force is the difference between mass and acceleration.
Force is the ratio of mass to acceleration.
Answer explanation
The correct choice states that force is the product of mass and acceleration, which aligns with Newton's second law of motion (F = ma). The other options incorrectly describe the relationship.
Tags
AK.SCI.6-8.MS-PS2-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor does NOT affect the strength of electric forces between two objects?
The distance between the objects.
The charge of the objects.
The color of the objects.
The medium between the objects.
Answer explanation
The strength of electric forces depends on the distance, charge, and medium between objects. The color of the objects does not influence electric forces, making it the correct choice as it does not affect their strength.
Tags
AK.SCI.6-8.MS-PS2-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary factor that determines the strength of gravitational interactions between two objects?
The distance between the objects.
The masses of the objects.
The volume of the objects.
The temperature of the objects.
Answer explanation
The strength of gravitational interactions is primarily determined by the masses of the objects involved. According to Newton's law of universal gravitation, greater mass results in stronger gravitational attraction.
Tags
AK.SCI.6-8.MS-PS2-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is evidence that fields exist between objects exerting forces on each other even though they are not in contact?
A magnet attracting a paperclip through a piece of paper.
A ball rolling down a hill.
A car accelerating on a flat road.
A book resting on a table.
Answer explanation
A magnet attracting a paperclip through a piece of paper demonstrates the existence of a magnetic field, which exerts a force without direct contact. This is clear evidence of fields acting between objects.
Tags
AK.SCI.6-8.MS-PS2-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Design a simple experiment to demonstrate Newton's Third Law using two colliding objects.
Drop two balls of different masses from the same height and observe their motion.
Push two identical carts towards each other and observe their motion upon collision.
Roll a ball down a ramp and measure its speed at the bottom.
Place a book on a table and measure the force it exerts on the table.
Answer explanation
Pushing two identical carts towards each other clearly demonstrates Newton's Third Law, as they exert equal and opposite forces upon collision, illustrating the principle of action and reaction.
Tags
AK.SCI.6-8.MS-PS2-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Plan an investigation to determine how the mass of an object affects its acceleration when a constant force is applied.
Use a spring scale to measure the force on different masses and record their accelerations.
Drop different masses from a height and measure the time taken to reach the ground.
Roll different masses down a ramp and measure their final velocities.
Use a stopwatch to time how long it takes for different masses to stop when pushed.
Answer explanation
Using a spring scale to measure force on different masses allows for direct observation of how mass affects acceleration, aligning with Newton's second law (F=ma). This method provides accurate data for analysis.
Tags
AK.SCI.6-8.MS-PS2-2
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