Newton's First Law of Motion Questions?

Question

1. What will happen to an object at rest if no force is applied?

2. What will happen to an object at rest if it is pushed, but there is a large frictional force acting on the object?

3. What will happen to the motion of an object that is pushed, and there is very little frictional force acting on the object?

4. What will happen to the motion of an object if there is a constant net force applied to it?

Answer 1

newtons first law states:

An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

1  the object will stay at rest because there is no unbalanced for acted upon it

2  the object will move in the direction it was pushed in.  when the frictional force is acted upon it, it will go in the direction the frictional force that has been applied to it.  (it will eventually stop, but I don't think that's what the physics teacher wants to hear)

3  the object will move in the direction that it is pushed, when the little frictional force is applied to the object the object will go in the direction that frictional force is acting on the object.  (it will slow down,  in time, but again I don't think that's what the teacher wants to hear)

4  the object will continue to move until an unbalance force is acted upon the object

this is what I can think of off the top of my head hope it helps, even just a little bit.  sorry if it's confusing too.  you have to think of the object as if it was in space, where there is no up or down or side to side

Answer 2

1. nothing

2.  slow acceleration,quickly slow down (if it moves at all)

3. accelerate quickly then slowly decelerate

4. it will keep moving, won't stop

Answer 3

1. the object will not move, however, there is called a normal force acting downward which opposes the weight of the object.

2. if there is a large frictional force then it requires a larger amount of force to push the object

3. it will be easy for you to push it

4. there will be constant velocity and no acceleration

Answer 4

-nothing

-depends on the frictional force

-an object that has a force applied to it temporarily (a push) will travel at a constant speed infinitely until an outside force disrupts it such as friction. under most circumstances where friction is present an object will slowly decelerate and eventually stop

-if a constant net force is applied to an object, it will accelerate at a uniform rate until the force is removed. example: if you drop an object it will constantly accelerate downward due to the constant force of gravity pulling down on the object. the net force is always the same, yet the objects speed keeps increasing

Answer 5

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