Dimensional Analysis Review

Convert 629.3 g to kg

• 0.6293 kg

• 6293 kg

• 62.93 kg

• 0.006293 kg

Convert a speed of 35.8 mi/hr to its equivalent in m/s.

• 32.0 m/s

• 16.0 m/s

• 8.0 m/s

• 1.33 m/s

How many kilograms of calcium are there in 173 pounds of calcium? (1 pound = 454 grams; 1 kg = 1000 g)

• 10 kg

• 78.5 kg

• 110 kg

• 78500 kg

Which conversion factor would you use to calculate correctly the mass of 2 moles of the element titanium?

• 1 g Ti / 47.9 mol Ti

• 1 mol Ti / 47.9 g Ti

• 47.9 mol / 1 g Ti

• 47.9 g Ti / 1 mol Ti

When would you need to use atomic mass from the periodic table AND Avogadro's number (the mole number 6.0*10^23) as a conversion factor? Select ALL that apply

• Converting grams to moles

• converting moles to atoms

• finding molar mass for a compound or element

• converting atoms to grams

What is the dimension of force in terms of mass (M), length (L), and time (T)?

• A) MLT^-2

• B) ML^2T^-1

• C) M^2LT^-2

• D) MLT^2

Tags

NGSS.HS-PS2-1

Which of the following is a correct dimensional formula for energy?

• A) ML^2T^-2

• B) MLT^-1

• C) M^2L^2T^-3

• D) ML^2T^-1

• A) LT^-2

• B) LT^-1

• C) L^2T^-2

• D) L^2T^-1

Tags

NGSS.HS-PS2-1

Which of the following quantities is dimensionless?

• A) Strain

• B) Force

• C) Velocity

• D) Pressure

• A) LT^-2

• B) L^2T^-1

• C) LT^-1

• D) L^2T^-2

Tags

NGSS.HS-PS2-4