Midterm Review (parts 2-3)

What is force?

• The ability to do work

• A push or pull that changes the motion of an object

• The rate of change in velocity

The combination of all forces acting on an object

• balanced forces

• unbalanced forces

• net force

Choose all that are correct. If the net force on an object is zero, this means:

• the forces are balanced

• the object is not changing its motion

• the object is accelerating

Choose all that are correct: If the net force on an object is greater than zero, what is true?

• the forces are balanced

• the forces are unbalaned

• the object will accelerate in the direction of the greater force

Calculate the net force acting on this object:

• 18N

• 7N

• 5N

• 11N

Calculate the net force on this object:

• 0N

• 5N

• 10N

• 15N

What is Newton's 1st Law known as?

• Law of Inertia

• Law of Acceleration

• Law of Action Reaction

What is Newton's 2nd Law known as?

• Law of Inertia

• Law of Acceleration

• Law of Action Reaction

What is Newton's 3rd Law known as?

• Law of Inertia

• Law of Acceleration

• Law of Action Reaction

What is inertia?

• the energy of motion

• the resistance to change motion

• the rate that work is done