GRAVITY

What is the SI unit used to measure force? 

• pounds 
• grams 
• newtons 
• kg/ m²

The force of gravity is also known as

• Mass
• Weight
• Distance
• Acceleration

As distance between two objects increase the pull of gravity 

• Increases
• Decreases
• Stays the same

A person would weigh more on Jupiter than on the Earth because . . .

• Jupiter has more mass, and therefore more gravity
• Jupiter has less mass, and therefore more gravity
• Jupiter has more mass, and therefore less gravity
• Jupiter has less mass and therefore less gravity

Gravity on Mars’ surface is much lower than it is here on Earth. This is because the mass of mars is ______ than Earth.

• less
• more
• the same

According to Aristotle...

• objects fall at a constant acceleration

• objects fall at a constant speed

• objects fall towards the center of the moon

• objects in motion tend to stay in motion

Who developed the theory of universal gravitation?

• Aristotle

• Galileo

• Newton

• Einstein

Who stated that all objects fall towards the "natural place." This person thought there were only four elements and that the natural place was the center of the earth.

• Aristotle

• Galileo

• Newton

• Einstein

Who proposed that objects of different masses would land at the same time as long as the resistance of the medium remains negligible?

• Aristotle

• Galileo

• Newton

• Einstein

The rate at which something moves is what?

• time

• acceleration

• sound

• speed