5.6D & 3.6B Force and Experimental Design

Front

What is the importance of conducting multiple trials in an experiment?

Back

Conducting multiple trials allows researchers to ensure that the results are reliable and not due to random chance.

Front

What is a hypothesis in the context of scientific experiments?

Back

A hypothesis is a testable statement predicting the outcome of an experiment, often formulated as an 'if-then' statement.

Front

What force pulls objects toward the Earth?

Back

The pull of Earth’s gravity.

Tags

NGSS.5-PS2-1

Front

What is friction?

Back

Friction is a rubbing force that opposes motion between two surfaces in contact; rough surfaces have more friction than smooth surfaces.

Front

Why is it incorrect to conduct an experiment only once?

Back

Conducting an experiment only once may lead to unreliable results; multiple trials help confirm findings.

Front

What is the relationship between surface roughness and friction?

Back

Rough surfaces create more friction, while smooth surfaces create less friction.

Front

How can a hypothesis be tested in an experiment?

Back

A hypothesis can be tested by designing an experiment that measures the effects of one variable on another.

Front

What is the role of air pressure in launching air rockets?

Back

Air pressure from a hand pump provides the force needed to launch air rockets into the sky.

Front

What is the scientific method?

Back

The scientific method is a systematic approach to inquiry that involves making observations, forming a hypothesis, conducting experiments, and drawing conclusions.

Tags

NGSS.MS-PS1-2

Front

What is the difference between a theory and a hypothesis?

Back

A hypothesis is a specific prediction that can be tested, while a theory is a well-substantiated explanation of an aspect of the natural world.