Fundamentals of Physics Concepts

What is the SI base unit for mass?

• Gram

• Pound

• Kilogram

• Ounce

Which of the following is a unit of distance, not time?

• Second

• Hour

• Light-year

• Day

What formula is used to convert a temperature from Celsius (T_C) to Kelvin (T_K)?

• T_K = T_C - 273.15

• T_K = T_C + 273.15

• T_K = 1.8 T_C + 32

• T_K = T_C / 1.8

What is the SI derived unit for acceleration?

• meters per second

• meters per second squared

• kilograms per meter

• Newtons

What is the standard SI unit for volume, and how does it relate to liters?

• Cubic centimeter (cm³); 1 cm³ = 1 L

• Cubic meter (m³); 1 m³ = 1000 L

• Liter (L); 1 L = 1000 m³

• Milliliter (mL); 1 mL = 1000 L

Which of the following correctly defines the SI unit of pressure and provides a common conversion for atmospheric pressure?

• Pascal (Pa), defined as 1 N/m²; 1 atm is approximately 101.3 kPa.

• Atmosphere (atm), defined as 1 N/cm²; 1 atm is approximately 760 mmHg.

• Torr (torr), defined as 1 Pa/m²; 1 atm is approximately 101.3 Pa.

• Millimeter of mercury (mmHg), defined as 1 kg/m²; 1 atm is approximately 101.3 kPa.

What is the standard SI unit for density, and how does it relate to the common unit used in chemistry?

• Grams per milliliter (g/mL); 1 g/mL is equivalent to 1 kg/m³.

• Kilograms per cubic meter (kg/m³); 1 kg/m³ is equivalent to 1000 g/cm³.

• Grams per cubic centimeter (g/cm³); 1 g/cm³ is equivalent to 1000 kg/m³.

• Kilograms per cubic meter (kg/m³); 1 g/cm³ is equivalent to 1000 kg/m³.

What is the SI unit for work and energy, and how is it defined in terms of fundamental SI units?

• Calorie (cal); 1 cal = 1 N·m

• Electron volt (eV); 1 eV = 1 kg·m²/s²

• Joule (J); 1 J = 1 N·m

• Kilocalorie (kcal); 1 kcal = 1 kg·m/s

What is the energy equivalent of one calorie (cal) in Joules?

• 4.184 J

• 1000 J

• 1.602 x 10^-19 J

• 746 J

Which statement accurately describes the relationship between work and energy?

• Work is the ability to do energy.

• Energy is the rate at which work is done.

• Work is a mechanism for transferring energy.

• Energy is a type of force.