Road to War

What is the primary cause of friction between two surfaces?

• Electromagnetic forces between atoms

• Gravitational forces

• Nuclear forces

• Weak forces

Tags

NGSS.HS-PS1-3

Which of the following best describes the process of photosynthesis?

• Conversion of chemical energy into light energy

• Conversion of light energy into chemical energy

• Conversion of thermal energy into mechanical energy

• Conversion of mechanical energy into thermal energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the role of enzymes in biological reactions?

• They slow down reactions

• They act as catalysts to speed up reactions

• They are consumed in the reaction

• They provide energy for the reaction

Which of the following is a vector quantity?

• Speed

• Distance

• Mass

• Velocity

What is the chemical formula for table salt?

Tags

NGSS.MS-PS1-1

Which of the following is an example of a renewable energy source?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy

What is the main function of the large intestine in the human body?

• Digestion of proteins

• Absorption of water

• Production of bile

• Storage of vitamins

Which gas is most abundant in the Earth's atmosphere?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen

What is the unit of electrical resistance?

• Volt

• Ampere

• Ohm

• Watt

Which of the following elements is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Hydrogen