Tools and Technology

Question 1

View the model of the United States. Which is a likely limitation of this model?

Revolt · Accepted Answer

It does not show mountainous regions.

Question 2

Which scientific tool helps to make distant objects appear nearer and larger?

Revolt · Accepted Answer

a telescope

Question 3

Which observation tool allows Shauna’s doctor to monitor her blood circulation in real-time?

Revolt · Accepted Answer

an ultrasound

Question 4

Rudri studies for her physical science test on the history of the atomic model. She creates a table to show how the atomic model has changed over time. Which represents the correct order of development for the atomic model?

Revolt · Accepted Answer

X→Y→W→Z

Question 5

Which elements do hydrogen fuel cells combine to produce electricity?

Revolt · Accepted Answer

hydrogen and oxygen

Question 6

Which best blocks X-ray particles and can therefore be observed more closely through the use of this technology?

Revolt · Accepted Answer

bones

Question 7

Which model is most likely used to show something that happens too slowly to see?

Revolt · Accepted Answer

a model of mountain formation

Question 8

Mia uses the formula πr2 to find the area of a circle. What is πr2 an example of?

Revolt · Accepted Answer

a model

Question 9

The Port of Houston is one of the busiest ports in the country. The U.S. Department of Energy gave this port $3.4 million to operate twenty heavy-duty hydrogen hybrid fuel cell powered trucks around the port.Which is the most likely reason the U.S. government made such an investment?

Revolt · Accepted Answer

to reduce harmful emissions

Question 10

Which best describes the current model of the atom?

Revolt · Accepted Answer

It may be revised with increasing scientific knowledge.

Tools and Technology Answers

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