Force and Motion Review 2
Authored by Kayla Alewine
Science
8th Grade
NGSS covered
Used 12+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of Newton's Laws is represented by this example: As the fuel in a rocket ignites, the force of the gas expands and explodes, pushes out the back of the rocket and pushes the rocket forward.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Tags
NGSS.MS-PS2-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of Newton's Laws is represented by this example: A pitched baseball goes faster than one that is gently thrown.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Once a rocket is in orbit, which of Newton's laws explains why the rocket can travel in space in the same direction at a constant speed without engine power?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Seat belts prevent passengers from injury when a vehicle starts or stops abruptly. How do seat belts protect passengers when a vehicle moving at a high speed stops abruptly?
Seat belts prevent all forward motion of the passengers due to their inertia.
Seat belts reduce the amount of forward motion of the passengers due to their inertia.
Seat belts reduce the amount of forward motion of the passengers by decreasing the inertia of the car.
Seat belts prevent all forward motion of the passengers by increasing the inertia of the car.
Tags
NGSS.MS-PS3-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two separate cannons with the same explosive charge fire different sized cannon balls. One cannon ball weighs 2 kg, and the other weighs 4 kg. The lighter 2-kg ball travels twice as fast from the cannon as the heavier 4-kg ball. Which of Newton's laws explains this behavior?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Tags
NGSS.MS-PS2-2
NGSS.MS-PS3-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two independent forces, 5 N and 10 N, are acting on object X, as shown in the diagram.
What is the best description of these forces?
The forces are balanced; they are opposite in direction and different in magnitude.
The forces are balanced; they are opposite in direction regardless of their magnitude.
The forces are unbalanced; they are opposite in direction and different in magnitude.
The forces are unbalanced; they are opposite in direction regardless of their magnitude.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 100 kg box is initially at rest on a level surface. One 10 N force acts on the box, directed toward the right. A second 10 N force acts simultaneously on the box, directed toward the left, as shown.
How is the box affected by the two forces?
The box will move because unbalanced forces are acting on it.
The box will move because balanced forces are acting on it.
The box will not move because unbalanced forces are acting on it.
The box will not move because balanced forces are acting on it.
Tags
NGSS.MS-PS2-2
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