Introduction to forces

What is defined as a push or pull?

• force

• motion

• vector

• speed

This type of force resist motion between two surfaces that are pressed together

• contact
• gravity
• friction

Forces that have a net force of zero ( the object's motion is not changing) are...

• Balanced force

• Unbalanced force

What force holds the planets in motion around the sun?

• Magnetic
• Electrical
• Gravitational
• Air Resistance

What does the strength of gravity between two objects depend upon?

• Mass & distance
• Mass & weight
• Gravity & inertia
• Inertia & mass

All objects in the universe have a gravitational attraction to each other. 

• True
• False

What force ultimately slows the roller coaster to a stop?

• Applied
• Normal
• Friction
• Magnetic

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

(T or F?) A balanced force is only an object that is not moving. 

• True 
• False

If an object is stationary (not moving) the forces acting upon it are _____________

• unbalanced
• weak
• balanced
• Hulk Smash!