AnswersBHS-Physics B-CRUnit Test

Unit Test — Cumulative exam Answers

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Haley noticed a small spot on her skin that turned out to be skin cancer. Which treatment is her doctor most likely to use?

A
brachytherapy
B
superficial external beam radiation therapy
C
radiopharmaceuticals
D
high intensity focused ultrasound
44
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The diagram shows the electric field around two charged objects.

Question illustration
A
Y is negative, and Z is positive.
B
Y is negative, and Z is negative.
C
Y and Z are like charges, but their identities cannot be determined.
D
Y and Z are opposite charges, but their identities cannot be determined.
45

The diagram shows a heating curve for a substance.

Question illustration
A
X-Y
B
Y-X
C
W-X
D
X-W
46

The diagram shows particles that make up an atom.

Question illustration
A
Strong nuclear force
B
Weak nuclear force
C
Gravitational force
D
Electromagnetic force
47

Emissions from alpha decay require the least amount of shielding.Which best describes why the emissions from alpha decay are so easily blocked compared to the emissions of other types of radioactive decay?

A
Alpha decay releases visible light, which has less energy than the light released during gamma decay.
B
Alpha decay releases particles that have less mass and charge than the particles released during beta decay.
C
Alpha decay releases particles that have less mass and charge than the particles released during gamma decay.
D
Alpha decay releases particles that have more mass and charge than the particles released during beta decay.
48

A charge of 8.4 × 10–4 C moves at an angle of 35° to a magnetic field that has a field strength of 6.7 × 10–3 T.

A
9.1 × 10–5 m/s
B
1.3 × 10–4 m/s
C
7.6 × 103 m/s
D
1.1 × 104 m/s
49

The diagram shows waves of sound travelling through the air.

Question illustration
A
StartFraction 1 over 9 EndFraction.
Option A
B
StartFraction 1 over 3 EndFraction.
Option B
C
StartFraction 1 over 2 EndFraction.
Option C
D
StartFraction 1 over 4 EndFraction.
Option D
50

Which force is sometimes attractive and has an infinite range?

A
strong nuclear
B
weak nuclear
C
gravitational
D
electromagnetic

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