MTTC Physical Science 3

Question 1

Which of the following is an example of a physical property of matter?

Accepted Answer

Density

Answer

Density can be observed and measured without changing the substance's identity, making it a physical property.

Question 2

What is the atomic number of an element?

Accepted Answer

The number of protons in the nucleus

Answer

The atomic number uniquely identifies an element and equals the number of protons in its nucleus.

Question 3

A ball thrown horizontally off a cliff will land farther from the base if it is thrown:

Accepted Answer

With greater horizontal speed

Answer

Greater horizontal speed increases the horizontal distance traveled before gravity pulls the ball to the ground.

Question 4

Which state of matter has a definite volume but no definite shape?

Accepted Answer

Liquid

Answer

A liquid has a definite volume but takes the shape of its container, distinguishing it from solids and gases.

Question 5

A teacher uses a tuning fork and a glass of water to show that sound creates vibrations. This activity best demonstrates which concept?

Accepted Answer

Sound as a mechanical wave requiring particle vibration

Answer

The vibrating tuning fork disturbs the water surface, visibly demonstrating that sound is energy transferred through particle vibration.

MTTC Test Practice Test