Physics

A

Force = mass x acceleration

B

Force = mass + acceleration

C

Force = acceleration / mass

D

Force = mass - acceleration

Explanation Comments

A

The net force on the object is always in the same direction as its motion.

B

The object is accelerating.

C

The net force on the object is equal to its weight.

D

The net force on the object is zero, and the object is either at rest or moving with constant velocity.

Explanation Comments

A

Joule (J)

B

Pascal (Pa)

C

Watt (W)

D

Newton (N)

Explanation Comments

A

Force of gravity is directly proportional to mass and distance.

B

Force of gravity is inversely proportional to mass and directly proportional to distance.

C

Force of gravity is inversely proportional to both mass and distance.

D

Force of gravity is directly proportional to mass and inversely proportional to the square of the distance.

Explanation Comments

A

3 x 10^8 m/s

B

1 atm

C

6.67 x 10^-11 N·m^2/kg^2

D

9.8 m/s^2

Explanation Comments

A

Heat transfer

B

Entropy

C

Conservation of matter

D

Conservation of energy

Explanation Comments

A

Enthalpy

B

Entropy

C

Temperature

D

Pressure

Explanation Comments

A

Evaporation

B

Sublimation

C

Combustion

D

Condensation

Explanation Comments

A

Entropy

B

Enthalpy

C

Specific heat

D

Efficiency

Explanation Comments

A

0 K

B

-100 K

C

-273.15 K

D

0°C

Explanation Comments

What is the relationship between force, mass, and acceleration?

Explanation:

When an object is in equilibrium, which of the following is true?

Explanation:

What is the SI unit of work and energy?

Explanation:

What is the relationship between the force of gravity, mass, and distance in the universal law of gravitation?

Explanation:

What is the acceleration due to gravity on the surface of the Earth?

Explanation:

The first law of thermodynamics is also known as the law of:

Explanation:

Which of the following is a measure of the disorder or randomness of a system?

Explanation:

Which of the following processes absorbs heat from the surroundings and cools the surroundings?

Explanation:

In a heat engine, what is the ratio of work output to the heat input called?

Explanation:

What is the lowest possible temperature in the Kelvin scale?

Explanation:

Quick Links