
Balanced, Unbalanced, and Net Forces
Flashcard
•
Physics
•
8th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
FLASHCARD QUESTION
Front
A force can be best described as:
Back
a push or pull
2.
FLASHCARD QUESTION
Front
Which of the following is an example of a net force?
Back
Friction pushes against an object, slowing it down.
3.
FLASHCARD QUESTION
Front
A tree is standing still. The wind begins to blow and the tree bends. Which statement best explains how you could tell that a net force was acting on the tree?
Back
The tree was stationary and began to move.
4.
FLASHCARD QUESTION
Front
In which situation does the motion of an animal show that a net force is acting on that animal?
- At 0 s, a snake slithers forward with a velocity of 2 m/s. 5 s later the snake's velocity is 2 m/s.
- An eagle remains flying at a constant velocity.
- A sparrow remains stationary perched on a power line.
- A running tiger increases its speed from 4 m/s to 6 m/s.
Back
A running tiger increases its speed from 4 m/s to 6 m/s.
5.
FLASHCARD QUESTION
Front
Which statement best states Newton's second law?
Back
The net force on an object will equal the mass of the object multiplied by its acceleration.
6.
FLASHCARD QUESTION
Front
If an object is traveling with a constant velocity, choose the best ending:
- There are only forces parallel to the direction of motion.
- There is no net force on the object.
- There are no forces on the object.
- There are no forces parallel to the direction of motion.
Back
There is no net force on the object.
7.
FLASHCARD QUESTION
Front
You see an object accelerate towards the left. Which of the following statements is correct?
- There is a net force on the object to the left.
- There is a net force on the object upwards.
- There is a net force on the object to the right.
- There is a net force on the object downwards.
Back
There is a net force on the object to the left.
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