Review Stuff

What is copernicus know for?

• mathematicians

• Having a life

• making a telescope

• To say the sun is in the middle of the universe

Planets orbit the Sun in a shape called a(n)

• circle
• ellipse
• focus
• perihelion

An object and rest will stay at rest and an object in motion will stay in motion unless acted on by a force, is which one of Newton's Laws of Motion?

• 4th Law of Motion
• 1st Law of Motion
• 3rd Law of Motion
• 2nd Law of Motion

For every action, thereʼs an equal and opposite reaction. *Action-Reaction*

• Newton's First Law
• Newton's Second Law
• Newton's Third Law
• force

A force that results from two objects rubbing past each other.

• Gravity
• Friction
• Inertia
• Force

The force that pulls objects towards Earth.

• Gravity
• Friction
• Inertia
• Force

 What is the unit called that measures force?

• Isaac
• Yee
• Newton
• kilogram

The scientist who is most famous for developing the Laws of Motion is _____.

• Albert Einstein
• Stephen Hawking
• Sir Isaac Newton
• Galileo Galilei

Which of these is evidence that an unbalanced force is acting on an object?

• The mass of the object is changing

• The object continues moving in a straight line

• The object remains at rest

• The motion of the object is changing

What is inertia?

• An object that is accelerating

• Gravitational force

• An objects tendency to stay at rest or in motion

• An unbalanced force