Argument-Driven Inquiry in Physical Science: Lab Investigations for Grades 6-8

National Science Teachers Association.Patrick Enderle, Jonathon Grooms, Todd Hutner, Ashley Murphy, Victor Sampson

Chapter 8 Lab 8. Force and Motion: How Do Changes in Pulling Force Affect the Motion of an Object? - all with Video Answers

Educators

Chapter Questions

01:43

Problem 1

Describe a general rule for predicting the motion of an object that is being pushed
or pulled by unbalanced forces.

Vipender Yadav

Numerade Educator

01:44

Below is a position versus time graph for a car accelerating away from a stoplight.
TABLE CAN'T COPY.
Draw a velocity versus time graph for the same car
Explain your answer. Why did you draw your graph that way?

Supratim Pal

Numerade Educator

Problem 3

Experiments are the best way to get answers during a scientific investigation.
a. I agree with this statement.
b. I disagree with this statement.
Explain your answer, using an example from your investigation about force and
motion.

Check back soon!

Problem 4

The scientific method guides scientists when they do their work.
a. I agree with this statement.
b. I disagree with this statement.
Explain your answer, using an example from your investigation about force and
motion.

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01:28

Problem 5

Scientists sometimes study systems that are very large or very small, and
sometimes scientists study systems that have lots of components. It is useful to
make models of complex systems to better understand what is going on. Explain
how models can be useful for understanding systems, using an example from your
investigation about force and motion.

David Collins

Numerade Educator

Problem 6

It is often important to understand the relationships between components of
a system. Explain why it is important to identify factors that cause a system to
become unstable, using an example from your investigation about force and
motion.

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Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6