Exploring Newton's First Law

According to Aristotle, what is the natural state of an object?

• At rest

• In a circular path

• In a straight line

• In motion

What was Aristotle's main error regarding motion?

• He believed in circular motion for all objects

• He didn't account for gravity

• He didn't understand friction

• He thought objects move in a straight line

What did Galileo conclude about friction?

• It is necessary to keep objects at rest

• It is a force that slows down moving objects

• It has no effect on motion

• It only affects objects in space

What did Galileo's ball and ramp experiment demonstrate?

• Objects stop due to air resistance

• Objects need a force to keep moving

• Objects will roll forever without friction

• Objects slow down due to gravity

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What is inertia?

• A gravitational pull

• A type of friction

• A resistance to change in motion

• A force that moves objects

According to Newton's First Law, what happens to an object in motion?

• It continues in a straight line at constant speed

• It accelerates

• It changes direction

• It eventually stops

What does the law of inertia state?

• Objects resist changes in their state of motion

• Objects need a force to stay at rest

• Objects move in circular paths

• Objects accelerate when a force is applied

How does mass affect inertia?

• More mass means less inertia

• Inertia is independent of mass

• Mass has no effect on inertia

• More mass means more inertia

What is the difference between mass and weight?

• Mass is the amount of matter, weight is the gravitational force

• Mass is the gravitational force, weight is the amount of matter

• Mass is measured in newtons, weight in kilograms

• Mass changes with location, weight does not

What is the weight of a 70 kg person on Earth?

• 686 newtons

• 980 newtons

• 700 newtons

• 70 newtons

Tags

NGSS.MS-PS2-4