True / False questions related to Newtonian Mechanics

[Sumbhajee]

Homework Statement

These are all true/false questions.

1. The acceleration of an object is same in all inertial reference frames.

2. The work required to lift a mass one meter depends on the speed at which it is raised..

3. The work done by a constant force acting on an object is equal to the magnitude of the force times the distance the object moves.

4. A particle's kinetic energy can change without having any net work done it.

5. Less power is required while lifting a box up quickly than while slowly lifting it.

6. A simple machine cannot reduce the work required to do a task.

Homework Equations

The Attempt at a Solution

I have attempted everything I could think of for these true/false questions and I cannot seem to find the correct answer. Please help.

 

[lewando]

If everything you tried is wrong...then the opposite must be true.

Sorry. Paraphrasing George Costanza.

Seriously, what have you specifically attempted? Let's start with that.