Answers25-26 TX-Physics B-CRUnit Test

Unit Test — Unit test Answers

24 verified answers3 views
22
Free Preview

Which observation supports the idea that light is made of particles?

A
Light is produced by the interaction of magnetic and electric fields.
B
Light spreads out after passing through an opening.
C
Light diffracts when it hits a barrier.
D
Light moves in a straight path.
23
Free Preview

A student has an unknown sample. How can spectroscopy be used to identify the sample?

A
It can identify the elements in the sample.
B
It can determine the number of electrons in the sample.
C
It can determine the ratio of the elements in the sample.
D
It can determine the molecular structure of atoms in the sample.
24

A box that has a weight of 40 N is hung from a spring. The spring constant of the spring is 400 N/m.

A
0.1 cm
B
1 cm
C
10 cm
D
100 cm
25

Which describes the relationship between the frequency, wavelength, and speed of a wave as the wave travels through different media?

A
As speed changes, wavelength changes and frequency remains constant.
B
As speed changes, frequency changes and wavelength remains constant.
C
As speed changes, wavelength and frequency change.
D
As speed changes, wavelength and frequency remain constant.

Did you find these answers helpful?

More from this Course

Quiz
9 verified answers

Coulomb's Law

Quiz
14 verified answers

Unit Test

Assignment
1 verified answers

Warm-Up