I need some one to check my work. plz:)
What is the force required to accelerate 1 kilogram of mass at 1 meter per second per second.
1 pound
1 kilometer
1 gram
1 newton***
Mass and _____ affect the gravitational attraction between objects.
air resistance
acceleration
force
distance***
Acceleration is measured in _____.
kilometers
meters/second2***
kilograms
newtons
What is Newton’s second law of motion?
Mass equals force multiplied by acceleration.
Acceleration equals force divided by mass.***
Acceleration equals force multiplied by mass.
Force equals mass divided by acceleration.
What would happen to an object moving north if there was no friction?
The object would continue to move north at the same speed unless it hit another object.***
The object would continue to move north and speed up until it hit another object.
The object would first slow down, then begin to move south.
The object would begin to slow down and eventually stop.
A rocket will move upward as long as which condition applies?
The reactive force is greater than the action force.
The force of thrust is greater than the force of gravity.***
The centripetal force is greater than the force of gravity.
The reactive force is greater than the force of gravity.
If a 3 kilogram iron ball is acted upon by a force of 3 newtons, what will be the result?
an acceleration of 1 m/s2
an acceleration of 1 kg***
an acceleration of 6 m/s2
an acceleration of 9 m/s2
When does fluid friction occur?
Two liquids move past each another.***
Liquid moves through a solid.
A solid object melts and becomes a liquid.
A solid object moves through a liquid.
What force pulls falling objects toward Earth?
free fall
gravity***
air resistance
acceleration
Unbalanced forces acting on an object _____.
change the object’s motion***
are not related to motion
cancel each other out
increase the speed
If you can help it would be great!!! :)
If a 3 kilogram iron ball is acted upon by a force of 3 newtons, what will be the result?
++++++++++++++++++++++++++++++++++++++++
a = F/m as you said elsewhere = 3 N / 3 kg = 1 m/s^2
So
"a" is in meters / second^2
++++++++++++++++++++++++++++++++++
an acceleration of 1 m/s2
an acceleration of 1 kg***
an acceleration of 6 m/s2
an acceleration of 9 m/s2
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When does fluid friction occur?
Two liquids move past each another.*** well, not usually
Liquid moves through a solid. How does that happen????? Molten iron through ice?
A solid object melts and becomes a liquid. HUH ????
A solid object moves through a liquid. YES!!! Otherwise your parachute would not help much.
Sure, I can check your answers for you! Here's the correct answer for each question:
1. What is the force required to accelerate 1 kilogram of mass at 1 meter per second per second?
- Correct Answer: 1 newton
2. Mass and _____ affect the gravitational attraction between objects.
- Correct Answer: distance
3. Acceleration is measured in _____.
- Correct Answer: meters/second2
4. What is Newton’s second law of motion?
- Correct Answer: Acceleration equals force divided by mass.
5. What would happen to an object moving north if there was no friction?
- Correct Answer: The object would continue to move north at the same speed unless it hit another object.
6. A rocket will move upward as long as which condition applies?
- Correct Answer: The force of thrust is greater than the force of gravity.
7. If a 3 kilogram iron ball is acted upon by a force of 3 newtons, what will be the result?
- Correct Answer: an acceleration of 1 m/s2
8. When does fluid friction occur?
- Correct Answer: A solid object moves through a liquid.
9. What force pulls falling objects toward Earth?
- Correct Answer: gravity
10. Unbalanced forces acting on an object _____.
- Correct Answer: change the object’s motion
It looks like you've done a great job with your answers! Keep up the good work!