IS Practice Test

Which of the following isn't true about the application of KMT?

• At a constant temperature, a volume rise causes pressure to drop.

• At constant volume, a temperature increase causes pressure to rise.

• Both are false

• Both are true

The phase of matter that has the weakest molecular bonds.

It is defined as the product of the force and the displacement through which the force acts.

• Energy

• Power

• Work

• Watt

It is the energy caused by an object's position or motion.

Time is directly proportional to power.

• True

• False

You did 40 J of work and a lever did 10 J. What is the efficiency of the lever?

• 0.25

• 0.3

• 0.5

• 0.145

It is defined by 
 $W=\frac{1}{2}mv_f^2-\frac{1}{2}mv_i^2$  

• Kinetic energy
  

• Potential energy

• Gravitational potential energy

• Elastic potential energy

It is a phase of matter that incompressible.

A screw's radius is 8 and its pitch is 9. What is its mechanical advantage?

• 5

• 5.5

• 6

• 5.58

Which is not a formula that calculates the value indicated?

• Spring force = kx

• Gravitational potential energy = mgh

• Elastic potential energy =

  $\frac{1}{2}kx^2$

• Kinetic energy = $2mv^2$