Recording and collecting data: Intro to Science

What is the main goal when collecting measurements in science?

• To collect measurements that vary greatly each time.

• To collect measurements that are close to the true value every time.

• To use the least specialized equipment possible.

• To ensure that measurements cannot be compared to other investigations.

What helps you collect precise and accurate data?

• General knowledge

• Specialized equipment

• Guesswork

• Common tools

What can accurate and precise results be compared to?

• Only to the results of other investigations

• Only to real world scenarios

• Neither to other investigations nor to real world scenarios

• Both the results of other investigations and real world scenarios

What does 'precision' refer to in scientific measurements?

• Results that vary greatly

• Results that are close to the true value

• Results or groups of measurements that are similar to each other

• The use of specialized equipment

What does 'accuracy' refer to in scientific measurements?

• Results that vary greatly

• Results or groups of measurements that are similar to each other

• The use of specialized equipment

• Results or measurements that are close to the true value

Which scenario depicts low accuracy and high precision?

• The first target with shots scattered all around the target.

• The second target with shots closely grouped but away from the center.

Which scenario depicts high accuracy and high precision?

• The first target with shots spread but centered.

• The second target with shots closely grouped at the center.

What is precision in scientific measurements?

• The accuracy of the measurements to the true value

• The similarity of results or groups of measurements to each other

• The number of measurements taken

• The difference between the smallest and largest measurement

How can precision be improved when measuring a liquid?

• By using a measuring cylinder with the largest gradations possible

• By taking fewer measurements

• By using a measuring cylinder with the smallest gradations possible

• By changing the equipment after every measurement

What is a common misconception about precise measurements?

• They are always taken with a measuring cylinder

• They are always close to the true value

• They require more time to be taken accurately

• They cannot be improved by taking more measurements