Types of Forces and Newton's Laws

Earth's natural force that pulls objects down. 

• Contact Force

• Gravity

• Friction

• Tension 

This type of contact force works against an objects motion. 

• Contact

• Gravity

• Friction

• Inertia 

If the net force is equal to zero, the forces acting on the object are...

• Balanced Forces

• Unbalanced Forces

We measure units of force in...

• Net Force

• Applied Force

• Newtons

• Pounds

Pushes and pulls are defined as this type of force.

• Applied Force

• Force & Motion

• Contact Forces

• Velocity

An _______ force must act on an object for it to CHANGE it's motion

• balanced
• unbalanced
• gravitational
• electrical

What law is best described as inertia?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

What law is demonstrated by the picture?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

An object's resistance to a change in motion is known as...

• Friction
• Inertia
• Force
• Gravity

Which answer choice best explains why tractor trailers take more time to speed up & slow down than regular cars?

• Tractor trailers have less mass and require less force to move.
• Tractor trailers have more mass and require more force to move.
• Tractor trailers have less mass and require more force to move.
• Tractor trailers have more mass and require less force to move.