Question 1

It is the rate at which work is done.

Accepted Answer

Power

Answer

Cohesion

Answer

Adhesion

Answer

Kinetic Energy

Question 2

Suppose the net force of an object is zero. Which statement is true?

Accepted Answer

The object is at rest.

Answer

The object is heavy.

Answer

The object is decelerating.

Answer

The object is accelerating.

Question 3

A $20N$ force is applied on the ground. How much return force will the ground exert?

Accepted Answer

Answer

Answer

Answer

Question 4

A bullet moves with a velocity of $20N$ m/s and has gained a kinetic energy of $9.00\ x\ 10^2\ j$ .

With solution: $KE\ =\ \frac{1}{2}\ mV^2$

$m\ =\ \frac{2KE}{V^2}$

Find its mass.

Accepted Answer

Answer

Answer

Answer

Question 5

Energy that our eyes can detect is called

Accepted Answer

light

Answer

thermal

Answer

magnetic

Answer

potential

Question 6

It is the product of the force and the displacement in the same direction.

Accepted Answer

Work

Answer

Energy

Answer

Free fall

Answer

Power

Question 7

A cavan of rice weighing $20N$ was lifted to a height of $3m$ with a force of $2.00\ x\ 10^2\ N$ . If the force moved through a distance of $10m$ , what was the efficiency of the machine used?

Accepted Answer

Answer

Answer

Answer

Question 8

It is the capacity to do work.

Accepted Answer

Energy

Answer

Pressure

Answer

Power

Answer

Force

Question 9

SI unit of energy.

Accepted Answer

Joule

Answer

Watt

Answer

Volts

Answer

Horsepower

Question 10

When work is done, the energy is transferred.

Accepted Answer

true

Answer

false

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