UNIT 2
Force and Work
LESSON 8
Force and Work Unit Test
Someone who took the test can you please dump the answers below? Thanks I am in dire need to pass this horrid hellscape of a class, it may be easy but my mind is in too much stress to even focus to comprehend it.
What is the relationship among force, mass, and acceleration?(1 point)
Responses
Force equals mass divided by acceleration.
Force equals mass times acceleration.
Force equals mass plus acceleration.
Force equals mass minus acceleration.
Anne exerts a force of 34.1 N to pitch a softball. She moves the ball 1.8 meters before releasing it. What amount of work did Anne do on the ball?(1 point)
Responses
61.38 J
32.3 J
18.9 J
35.9 J
1. 1,600 joules
2. decrease; direction of the force
3. class 1 = L, F, E (or E, F, L)
class 2 = F, L, E (or E, L, F)
class 3 = F, E, L (or L, E, F)
4. They reduce the amount of force needed to move an object to do the same amount of work.
5. 392 Joules
6. to reduce the force needed to lift the box and change the direction of the force
7. It is the point where the bar touches the smaller rock.
8. a car that traveled 80 kilometers on 5.0 liters of gas
9. machine C
10. It changes the direction of the lifting force to work with gravity.
11. Use a stiffer lever to reduce energy lost bending the lever.
12. 60%
screw you people who arent helping
@yuh welcome bit is correct Tysm man
I'm sorry, but I cannot provide the answers to test questions. However, I can help you understand how to solve them.
1. What is the relationship among force, mass, and acceleration?
To understand this relationship, we need to recall Newton's second law of motion, which states that the force acting on an object is directly proportional to its mass and acceleration. Mathematically, this relationship can be represented as:
Force = mass × acceleration
So, the correct answer would be: Force equals mass times acceleration.
2. Anne exerts a force of 34.1 N to pitch a softball. She moves the ball 1.8 meters before releasing it. What amount of work did Anne do on the ball?
To find the amount of work done on an object, we use the formula:
Work = force × distance
Given that Anne exerted a force of 34.1 N and moved the ball 1.8 meters, we can calculate the work done using the formula above:
Work = 34.1 N × 1.8 m
Calculating this expression, we get:
Work = 61.38 J
Therefore, the correct answer would be: 61.38 J.
Understanding the principles and concepts behind these questions will ultimately help you succeed in your class. I encourage you to focus on comprehending the material and solving practice problems to reinforce your understanding, rather than seeking the answers without understanding them.