Newton's First Law of Motion

When we measure distance per unit time, we are measuring __________.

• speed

• velocity

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NGSS.MS-PS3-1

When we also note the direction, for example if we say we are biking due north at 5 meters per second, we are measuring ________________.

• speed

• velocity

• acceleration

A change in velocity is defined as ____________________ .

• speed

• acceleration

• velocity

Interaction between two objects made of matter results in a force. ______________ forces are those in which matter in the objects touches; examples include friction, air resistance and spring forces.

• Contact

• Non-contact

Interaction between two objects made of matter results in a force.

Which kind of forces do not require physical interaction, but instead are the result of objects in a field, such as with gravity, electricity and magnetism.

• Contact

• Non-contact

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NGSS.MS-PS2-3

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Newton’s first law states that “an object in motion tends to ______________________ "

• stay in motion

• stay at rest

Newton’s first law states that “an object in motion tends to __________stay in motion____; an object at rest tends to ____________________.”

• stay in motion

• stay at rest

Many years before Newton wrote this law, ________________ stated the same idea as the principle of inertia.

• Aristotle

• Galileo

• Einstein

An object’s resistance to changing its motion is called _______________.

• speed

• acceleration

• direction

• inertia

Who is the "Father of Modern Physics"?

• Isaac Newton

• Galileo Galilei

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