Scientific Endeavour

Question 1

What is independent variable?

Answer 1

changed variable

Question 2

What is dependent variable

Answer 2

measured variable

Question 3

Which is not an appropriate way of recording a scientific observation?

A. The solid turns blue when heated

B. The solid gives off a gas when heated

C. The solid is affected by heat

D. The solid melts when heated

Answer 3

C

Question 4

What is the SI unit for volume

Answer 4

m3 ( cubic metre )

Question 5

What is the SI unit for mass

Answer 5

Kg ( kilogram )

Question 6

What is SI unit for time

Answer 6

S ( seconds )

Question 7

What is the SI unit for length

Answer 7

m ( metre )

Question 8

What is the S! unit for temperature

Answer 8

K ( kelvin )

Question 9

What is accuracy

Answer 9

Accuracy is when a reading is very close to or same as the true value , the measurement is said to be accurate

Question 10

What is zero error

Answer 10

Zero error is when an instrument gives a non-zero reading when the measured quantity should be zero

Question 11

What is parallax ( do not spell it wrongly ) error

Answer 11

Parallax error is when the marking on an instrument is viewed from the wrong angle during a measurement

Question 12

How to avoid parallax error when looking at the ruler

Answer 12

Position the eye so that the line of sight is perpendicular to the marking on the ruler

Question 13

How to avoid parallax error when looking at measuring cylinder

Answer 13

Position the eye so that the line of sight is level with the bottom of the meniscus