Physics 9 Quiz

The time required to make a trip of 100.0 km is measured at various speeds. From the graph above, what speed will allow the trip to be made in 2 hours?

• 20.0 km/h

• 40.0 km/h

• 50.0 km/h

• 90.0 km/h

Which of the following is an area of physics that studies motion and its causes?

• thermodynamics

• mechanics

• quantum mechanics

• optics

Listening to your favorite radio station involves which area of physics?

• optics

• thermodynamics

• vibrations and wave phenomena

• relativity

A baker makes a loaf of bread. Identify the area of physics that this involves.

• optics

• thermodynamics

• mechanics

• relativity

A hiker uses a compass to navigate through the woods. Identify the area of physics that this involves.

• thermodynamics

• relativity

• electromagnetism

• quantum mechanics

According to the scientific method, why does a physicist make observations and collect data?

• to decide which parts of a problem are important

• to ask a question

• to make an interpretation

• to solve all problems

According to the scientific method, how does a physicist formulate and objectively test hypotheses?

• by defending an opinion

• by interpreting graphs

• by experiments

• by stating conclusions

In the steps of the scientific method, what is the next step after formulating and objectively testing hypotheses?

• interpreting results

• stating conclusions

• conducting experiments

• making observations and collecting data

Diagrams are not designed to

• show relationships between concepts.

• show setups of experiments.

• measure an event or a situation.

• label parts of a model.

Why do physicists use models?

• to explain the complex features of simple phenomena

• to describe all aspects of a phenomenon

• to explain the basic features of complex phenomena

• to describe all of reality