Question

Question 3
What is the difference between a vector and a scalar?

a
A vector is only measured in SI units, where scalars are only measured in US Customary units
b
A vector measurement contains a direction and magnitude, a scalar measurement only contains a magnitude
c
A vector measurement is required for distance, a scalar measurement is required for displacement
d
A vector is only used in measuring forces, a scalar is only used in measuring mass
Question 4
What two subatomic particles have the greatest mass?

a
neutrons and electrons
b
protons and neutrons
c
protons and electrons

Answer 1

**Question 3: What is the difference between a vector and a scalar?**

The correct answer is:
**b** A vector measurement contains a direction and magnitude, a scalar measurement only contains a magnitude.

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**Question 4: What two subatomic particles have the greatest mass?**

The correct answer is:
**b** protons and neutrons.

Protons and neutrons have significantly greater mass compared to electrons.