Forces!

In the realm of science, you will com across the term SI UNITS. This term is an abbreviation for something else. What are the letters "SI" an abbreviation for?

• Something Insulated

• Scientific Inclusion

• Scientific Influence

• Standard Units of Measure

In science we use abbreviations to show units of measure. What abbreviation is the correct unit of measure for "meter"?

• met

• mr

• m

• sec.

In science we use abbreviations to show units of measure. What abbreviation is the correct unit of measure for "kilogram"?

• s

• k

• m

• kg

In science we use abbreviations to show units of measure. What abbreviation is the correct unit of measure for "seconds"?

• s

• sec

• mol

• ss

True or False. There is always just ONE force acting on an object at a time.

• True

• False

When more than one force is acting on an object we call this _________.

• Net force

• Drag

• Free Fall

• Potential force

True or False. Force can also be described as the strength and direction an object is being acted on.

• True

• False

True or False. Net force can never be increased or decreased.

• True

• False

In the picture to the left, one person is pushing the wagon to the right using 60N of force and a second person is pushing the wagon in the same direction using 30N of force. What is the net force being applied to this wagon?

• 30N

• 90kg

• 90N

• 30kg

In the picture to the left, there is force being applied to the blue box. Two people are pulling the box to the left and both of these people are pulling using 30N of force EACH. There is a third person pulling the same box to the right using 80N of force. What is the net force being applied to this box?

• 60N

• 20N

• 30N

• 140N