Unit 3: Force, Speed, & Newton (4th)

Front

What is Newton's First Law known as?

Back

Inertia

Front

Why would a person weigh less on the Moon than on Earth?

Back

Because the Moon has less mass and therefore less gravity.

Front

A Lego car travels 3 meters in 3.7 seconds. What is the car's speed?

Back

0.81 m/s

Front

What does Newton's 1st Law state?

Back

An object in motion (or at rest) will stay in motion (or at rest) until an outside force acts upon it.

Front

What is a push or pull exerted on an object called?

Back

Force

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N)

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as Weight = Mass x Gravity.

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.81 m/s².

Front

What is Newton's Second Law of Motion?

Back

Force equals mass times acceleration (F = ma).