The vernier caliper
Storyboard Text
-
- Hey Colliper. I'm doing good, although I've really been struggling in physics class. We've just started instruments and I am really confused.
- Don't worry Veena. I could probably help you out.
- Oh hey Veena. Long time no see. How has your new school year treating you?
-
- Speaking of instruments. what's that weird thing you're holding in your hand?
-
- Umm....what the heck is that supposed to be?
- Hmm... interesting. I'd love to know more
- It's a measuring instrument. It can be used to measure linear dimensions and also diameters of round objects. Let me take you to the lab and teach you
- OH THIS! It's a vernier caliper
-
- MOM HOW DO YOU USE THE VERNIER AGAIN?!
- Oh yes they do. Let me show you
- Ok. Listen closely because there are many parts to this instrument. Here they are.
- Wow, so many in this one little instrument? Do they all have a different functions? What do they do?
- THE FUNCTIONS OF THE PARTS1. Main Sale: It can give measurements up to one decimal place.2. Vernier Scale: It can give measurements up to two decimal places.3. Tail: It is used to measure depth or hole.4. Outer Jaws: It is used to measure external gaps or widths of an object.5. Inner Jaws: It is used to measure internal gaps / internal diameter of an object6. Screw Clamp: It is used to adjust the position of the jaws.7. Knob: It is used for the easy movement of jaws.
- It's SD is 0.01cm and it's range is 0-12.5cm
- Wow, then that could measure the diameter really small objects like a pencil or test tube
- Wait how do we use one of these vernier caliper things?
- What job is that?
- A product inspector! It's someone who checks goods to make sure that they meet up with all the necessary requirements.My mom measures the products with a vernier caliper to make sure they're the right size. Let me call my mother and ask her how we use it.
- Hmm...Oh I know! My mom uses vernier calipers at her job all the time!
- STOP SHOUTING !!! ...... ANWAYS1. Place the item in the lower jaws then use the lock screw to tighten it so that it would sit in place2. Then find the reading on the main scale3. Look at the vernier scale and see where the it lines up with the main scale (use that as your reading)4. Add the readings from both scales together and you get your answer!BUT BE CAREFUL OF ZERO ERROR! THERE ARE TWO TYPES!When the 0 on the main scale and the vernier scale don’t line up after the jaws have been closed, the reading would be wrong. To find the zero error look to see where both scales line up and find their difference. This value is the zero error. So always do this after you have found your answer.:Positive zero error -The reading with zero error - the zero error readingNegative zero error - The reading with zero error + the zero error
Over 30 Million Storyboards Created