Types of Forces

Normal force
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Is always perpendicular to a surface.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
A surface pushing up from below.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Will change direction if a surface is tilted.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Decreases when a ramp is tilted.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Equals the weight for an object at rest on a surface when there are no other forces.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Force of friction
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Increases with rough surfaces.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Resists change of motion.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Is less with smooth surfaces.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Pulls to the left if an object is moving to the right.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Weight
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Always pulls downward.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Caused by gravity.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
The amount = mg
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Any push or pull.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
You pushing on an object
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Tension
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Exerted by a string or rope.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Is equal throughout.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Can never push.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Measured in newtons.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Can cause a change of motion.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Can accelerate an object.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All
Is negative when to the left or down.
1. F_N
2. F_f
3. F_W
4. F (or F₁, F₂, etc)
5. T
6. All