MTTC Physical Science 2

Question 1

According to the periodic table, elements in the same group (column) share which property?

Accepted Answer

The same number of valence electrons

Answer

The same number of protons

Answer

The same number of neutrons

Answer

The same atomic mass

Question 2

What is the difference between speed and velocity?

Accepted Answer

Velocity is speed with a specified direction

Answer

Speed includes direction; velocity does not

Answer

They are the same thing

Answer

Speed is always greater than velocity

Question 3

Which process describes water changing directly from a solid to a gas without passing through the liquid phase?

Accepted Answer

Sublimation

Answer

Evaporation

Answer

Condensation

Answer

Melting

Question 4

A student pushes a box with a force of 20 N, but it does not move. Which force is balancing the applied force?

Accepted Answer

Static friction

Answer

Gravity

Answer

Normal force

Answer

Air resistance

Question 5

Which type of electromagnetic radiation has the highest energy?

Accepted Answer

Gamma rays

Answer

Radio waves

Answer

Visible light

Answer

Infrared radiation

Question 6

In a simple circuit, if the resistance is doubled while the voltage remains constant, what happens to the current?

Accepted Answer

Current is halved

Answer

Current doubles

Answer

Current remains the same

Answer

Current triples