Isaac Newton and Forces

What is the SI unit for weight?

• Kilograms (Kg)

• Miles per Hour (mph)

• Millimeters (mm)

• Newtons (N)

A 20 kg bike accelerates at 10 m/s2. What was the force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

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8 N to the left , and 4 N to the right. Find the net force. Is this balanced?

• 12 N Right No

• 4 N Left No

• 12 N Right Yes

• 4 N Left Yes

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Which one is balanced?

• top

• bottom

• both

• neither

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Who came up with these three laws of motion?

• Sir Isaac Newtons

• Cam Newton

• Olivia Newton John

• Archimedes

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What does it mean when forces are balanced?

• The forces are working together to do the pushing or pulling.

• The forces are equal to each other and cancel each other out.

• The forces are placed on a scale to be weighed.

• The forces are examined carefully for differences in their magnitude.

What is an unbalanced force?

• Forces that are unequal and do not cancel each other out.

• Forces that work together.

• Forces that are not examined for differences in their magnitude.

• Forces that are not weighed on a scale.

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What does the measurement unit N stand for?

• Net force

• Newton

• Neutrino

• Net weight

What is another term for "drag" force?

• Air resistance

• Normal force

• Buoyancy

• Velocity

What is true of non-contact forces?

• They become weaker the farther away from their source you get.

• They always drive two objects farther apart.

• They always bring objects closer together

• They get stronger the farther away from their source you get.

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