How Soccer Can Help Us Understand Physics

Once in motion, what does an object like soccer ball have a natural tendency to do?

• It has a natural tendency to keep moving

• It has a natural tendency to stop

• It has a natural tendency to change direction

• t has a natural tendency to slow down

What does the author explain in this passage?

• The author explains the force of friction, using the different kinds of music as examples

• The author explains the sport of soccer, using examples of current teams and players

• The author explains the idea of motion, using different sports as examples

• The author explains the importance of bike safety, using helmets as an example

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“Swimmers wearing full body suits that reduced underwater friction were able to swim faster than wimmers.

What evidence from the passage supports this statement?

• Some swimmers shaved their entire bodies to reduce friction caused by hair and increase their speed

• After losing contests by a tenth of a second, some swimmers started ridding their bodies of hair

• Swimmers wearing full-body suits swam at the same speed as swimmers wearing shirts and shorts that clung closely to their skin

• Swimmers wearing full-body suits began to break world records and started winning all the races

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Based on the information in the passage, how can friction be described?

• Friction can be described as a force that acts on a object in motion and can cause the object to stop

• Friction can be described as a force that acts on an object in motion and can cause the object to speed up

• Friction can be described as the path an object takes after a force acts on it and causes it to move

• Friction can be described as the path an object takes when a force acts on it inside a vacuum

What is the passage mainly about?

• Why swimmers and cyclists move at different speeds

• The motion of bodies and objects

• The movement of an object inside a vacuum

• The scientific discoveries of Sir Isaac Newton

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"Newton suggested that objects like the soccer ball have a natural tendency to keep moving. The only reason they stop, he believed , is because an unbalanced force acts." What does tendency mean?

• a very small chance of something happening

• a fifty-fifty chance of something happening

• the fear of doing something or acting in a certain way

• the way something normally behaves or acts

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