Theory vs Hypothesis vs Law

What is the main difference between a scientific theory and a hypothesis?

• A hypothesis is a law, while a theory is a guess.

• A theory is a single observation, while a hypothesis is a collection of observations.

• A hypothesis is a testable explanation, while a theory is a well-substantiated explanation.

• A theory is a guess, while a hypothesis is a proven fact.

What is the role of a hypothesis in scientific inquiry?

• To describe the mathematical relationship between variables.

• To serve as a testable explanation for an observation.

• To provide a final answer to a scientific question.

• To replace existing scientific theories.

What is the germ theory of disease?

• The hypothesis that diseases are caused by germs entering the body.

• The law that diseases are caused by supernatural forces.

• The idea that diseases are caused by bad air.

• The theory that diseases are caused by an imbalance of bodily fluids.

Why is evolution by natural selection considered a theory?

• Because it is a guess about how species change.

• Because it is a well-tested framework for understanding species change.

• Because it is a law that describes species change.

• Because it is a hypothesis that has not been tested.

How does a scientific theory differ from a scientific law?

• A law is a guess, while a theory is a proven fact.

• A theory is a mathematical formula, while a law is a hypothesis.

• A law explains why something happens, while a theory describes how it happens.

• A theory explains why something happens, while a law describes how it happens.

What does Newton's law of universal gravitation describe?

• How two objects attract each other based on mass and distance.

• The speed at which light travels in a vacuum.

• Why objects fall towards the Earth.

• The chemical composition of objects in space.

What challenge does quantum mechanics present to general relativity?

• It accounts for gravitational effects on the smallest scales.

• It describes the behavior of light.

• It explains gravity on a large scale.

• It replaces the need for a theory of gravity.