Length and Time

Question 1

What is a rule used for?

Answer 1

A rule is used to measure length.

Question 2

What are the units of length?

Answer 2

Km-Kilometer 1km=1000m
M-Meter 1m=100cm
Cm-Centimeter 1cm=10mm
Mm-Millimeter 1m=1000mm

Question 3

What are the units of volume?

Answer 3

L-Liter
ML-Milliliter 1L=1000mL
Cm3-Cubic centimeter 1x1x1
Dm3-Cubic decimeter
M3-Cubic meter

Question 4

What is a micrometer screw gauge used for?

Answer 4

A micrometer is used to measure small measurements=less than a millimeter

Question 5

What are all the parts on a micrometer called?

Answer 5

Anvil, Spindle, Main scale, Thimble scale, Thimble, Ratchet

Question 6

How to measure an interval of time?

Answer 6

Take the time at the beginning and at the end of a time lapse then find the difference between the two.

Question 7

What are the parts of a pendulum?

Answer 7

Rigid support
string
bob

Question 8

How to calculate the time it takes for 1 complete pendulum swing.

Answer 8

Measure the time it takes for multiple swings(oscillations) and calculate the average to find how long one oscillation is.

Question 9

Hooke’s law formula

Answer 9

Force=spring constant x extension

F=kx

Question 10

F=kx units

Answer 10

Force>Newtons
Spring constant>N/m
Extension>m

Question 11

What do you need for Hooke’s law?

Answer 11

Clamp, Spring, Weight, Meter rule

Question 12

What is k? (Spring constant)

Answer 12

Measure of stiffness of the spring

Question 13

On Hooke’s law to measure extension you….

Answer 13

Measure first length from current length and find the difference

Question 14

Practical for Hooke’s law

Answer 14

> You will need: Clamp, spring, weight, meter rule, stand
Measure spring with no load
Add one newton to spring and measure the length
Add another Newton to spring and measure new length
Repeat prosses
You’ll reach limit of proportionality where the spring won’t return to it’s original shape