It looks like you've uploaded an image showing a
triple beam balance with a reading, but since I can't view images directly, I’ll interpret the image based on your description and the typical layout of such balances.
A
triple beam balance has three beams with sliding weights (riders) that are used to measure mass. The total mass is the sum of the values indicated by the positions of the riders on each beam.
Let’s break down the three beams:
---
Beam 1 (Top):
- Scale: 0 to 90 grams in increments of 10
- Rider position: At
0 g
- So, this contributes:
0 g
---
Beam 2 (Middle):
- Scale: 0 to 400 grams in increments of 100
- Rider position: At
300 g
- So, this contributes:
300 g
---
Beam 3 (Bottom):
- This is the most precise beam, usually marked in 0.1 g increments.
- Scale: 0 to 9 grams (each major division = 1 g), with smaller divisions between.
- Rider position: At
6.7 g (since it's just past 6 and aligned with the 7th small mark — assuming each small tick is 0.1 g)
- So, this contributes:
6.7 g
---
Total Mass:
Add all contributions:
$$
0\,\text{g} + 300\,\text{g} + 6.7\,\text{g} = \boxed{306.7\,\text{g}}
$$
---
✔ Final Answer:
The mass of the object is 306.7 grams.
---
🔍 Explanation:
- The triple beam balance works by balancing the object’s weight against known masses.
- Each rider represents a different magnitude:
- Top beam: 10 g per notch
- Middle beam: 100 g per notch
- Bottom beam: 0.1 g per notch
- You read the position of each rider and add them together for the total mass.
Let me know if you'd like help interpreting a specific detail or if the rider positions were different!
Parent Tip: Review the logic above to help your child master the concept of reading triple beam balance worksheet.
