Screenshot of a Quizizz quiz titled "Units and Measurement Quiz - Week 2," featuring 10 multiple-choice questions on topics like liters to milliliters, centimeters to millimeters, kilograms to grams, scientific notation, and speed conversion.

Let’s solve each question step by step with clear explanations.

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Question 1:
> A bottle of ketchup holds 0.946 liters. Which of the options in milliliter is equivalent to 0.946 L?

✔ Conversion:
1 liter (L) = 1000 milliliters (mL)
So,
0.946 L × 1000 = 946 mL

✔️ Correct Answer: C. 946

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Question 2:
> The thickness of the leg of an ant is 0.035 centimeters. How many millimeter is this?

✔ Conversion:
1 centimeter (cm) = 10 millimeters (mm)
So,
0.035 cm × 10 = 0.35 mm

✔️ Correct Answer: C. 0.35

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Question 3:
> Which of the following is equivalent to 23 kg?

✔ Conversion:
1 kilogram (kg) = 1000 grams (g)
So,
23 kg × 1000 = 23,000 g

✔️ Correct Answer: C. 23,000 g

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Question 4:
> Which is the best example of a number written in scientific notation?

✔ Scientific Notation Rules:
- Must be in the form: a × 10^n, where 1 ≤ |a| < 10
- “a” must have only one non-zero digit before the decimal.

Check options:
- A. 5.367 × 10^-3 → ✔ Valid! (5.367 is between 1 and 10)
- B. 0.5 × 10^5 → ✘ Invalid! (0.5 < 1)
- C. 0.1254 → ✘ Not in scientific notation format
- D. 12.5 × 10^2 → ✘ Invalid! (12.5 > 10)

✔️ Correct Answer: A. 5.367 × 10^-3

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Question 5:
> Which of the following is the correct scientific notation for 0.000058?

✔ Convert 0.000058 to scientific notation:

Move decimal point 5 places to the right to get a number between 1 and 10:
→ 5.8 × 10^-5

✔️ Correct Answer: D. 5.8 × 10^-5

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Question 6:
> A student averaged 45 km per hour on a trip. What was the student's speed in meter per second?

✔ Convert km/h to m/s:

We know:
- 1 km = 1000 meters
- 1 hour = 3600 seconds

So,
45 km/h = 45 × (1000 m / 3600 s) = 45 × (5/18) m/s

Calculate:
45 × 5 = 225
225 ÷ 18 = 12.5

✔️ Correct Answer: C. 12.5

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✔ Final Answers:

1. C
2. C
3. C
4. A
5. D
6. C

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