Chapter Quiz(Intro)

On one of the express way in the Philippines, a car travelled at a speed of 38m/s. Covert it to mi/hr. Suppose the speed limit on that express way is 60mi/hr. Is this car exceeding the speed limit?

• 16.98 mi/hr. , it does not exceed the speed limit.

• 76.56 mi/hr. , it exceed the speed limit.

• 58.43 mi/hr. , it does not exceed the speed limit

• 85.02 mi/hr. , it exceed the speed limit

Express the following quantities using prefixes(symbol)
*round to the nearest tenths*

 $3.39\times10^{-3}m$  

Express the following quantities using prefixes(symbol)
*round to the nearest tenths*

 $2.74\times10^{-12}m$  

Express the following quantities using prefixes
*round to the nearest tenths*

 $5.38\times10^{-6}s$  

Express the following quantities using prefixes(symbol)
*round to the nearest tenths*

 $4.44\times10^6g$  

Express the following quantities using prefixes(symbol)
*round to the nearest tenths*

 $1.736\times10^{12}B$  

The volume of a wallet is  $8.48\ in.^3$  . Convert this value to  $m^3$  (in standard form). *round to the nearest tenths*

Example: 8.5 x 10^-6 in^3 (write your answer like this)

A rectangular building lot is 110ft by 160ft. Determine the area of this lot in  $m^2$  *final answer must be rounded to the nearest one*

example: 2345m^2 (write your answer like this)

A solid piece of lead has a mass of 23.94g and a volume of 2.10cm^3. Calculate the density of lead in SI units (kg/m^3). Note: convert first into SI units

*density=mass/volume*

do not include (,) in your answers, numbers and units only ex.(1234kg/m^3)

Suppose Ben measured the length of a wooden block 3 times and arrived with these measurements (21.7mm, 22.3mm, 21.8mm) What is the average of the measurements including its uncertainty?

you can write this as (Ex. 30.1mm±0.4mm) or (30.1mm+_0.4mm)