Force and Motion

Question 1

Speed

Answer 1

-How long it takes to go a distance
-Time + Distance
- Formula: d/t

Question 2

Velocity

Answer 2

• Speed + direction; vector
  Vector: arrow shows directions + magnitude (amount + speed)

Question 3

Acceleration

Answer 3

• Change in speed + direction

Question 4

Force

Answer 4

• Push or pull
  Result: motion

Question 5

Contact Force

Answer 5

• Force due to contact
  1. Kicking
  2. Lifting
  3. Pulling
  4. Friction

Question 6

Friction

Answer 6

• Two objects move againt each other

Question 7

Noncontact Force

Answer 7

• Force that one onject can apply to another without touching it
• Gravity is attractive force between objects
• Factors: distance + mass

Question 8

Net Force

Answer 8

• Sum of all forces acting on object
  1. Balance Force - net force zero, object doesn’t move
  2. Unbalanced Force - uneven forces, object will move

Question 9

Newton’s Laws of Motion

1st Law

Answer 9

Object will not change its motion unless an unbalanced force acts on it

Question 10

Newton’s Laws of Motion

2nd Law

Answer 10

Force = mass x acceleration of an object
- Greater mass, little change in motion
- More velocity, greater change in motion
F = ma

Question 11

Newton’s Laws of Motion

3rd Law

Answer 11

For every action, there is an equal yet opposite reaction

Question 12

Inertia

Answer 12

The tendency of an object to resist a change in motion