Physical Science Exam Review 1

What is a chemical reaction that absorbs heat from its environment?

• Exothermic reaction

• Endothermic reaction

• Catalytic reaction

• Combustion reaction

Tags

NGSS.HS-PS1-4

What term describes a quantity that has magnitude only?

• Vector

• Scalar

• Tensor

• Matrix

What is the term for a quantity that has both magnitude and direction?

• Scalar

• Vector

• Magnitude

• Direction

What is the term for the speed of an object in a given direction?

• Speed

• Acceleration

• Velocity

• Momentum

What is the principle that states that energy cannot be created or destroyed, only transformed?

• Law of conservation of energy

• First law of thermodynamics

• Second law of thermodynamics

• Law of energy transformation

What is the term for a reaction that involves the breaking down of a compound into simpler substances?

• Synthesis reaction

• Decomposition reaction

• Single replacement reaction

• Double replacement reaction

What is the term for the energy required to start a chemical reaction?

• Activation energy

• Catalytic energy

• Thermal energy

• Kinetic energy

What is the name of the process where a substance combines with oxygen to produce heat and light?

• Combustion

• Oxidation

• Fermentation

• Photosynthesis

What is the measure of the gravitational force acting on an object?

• Mass

• Weight

• Density

• Volume

Tags

NGSS.HS-PS2-4

What type of chemical reaction occurs when an element reacts with a compound and takes the place of another element in that compound?

• Single replacement reaction

• Double replacement reaction

• Combustion reaction

• Synthesis reaction