Category 1
What are the three types of external forces?
Applied Force, Contact Force, Non-Contact Force
What three examples of Friction?
Writing, car tires, playing sports, sanding.
A force that originates from outside a system or object and acts upon it.
External Force.
Forces that are externally applied to an object, causing it to accelerate or deform.
Applied forces.
What are two categories of forces?
Internal and External
A force that exists inside an object or a system, between different parts of the object or system.
Internal force.
When you hit a baseball, what force are you using?
What force is pushing a shopping cart an example of?
Contact Force.
The force that squeezes or presses an object together. It is like a hug or a squish that makes something smaller.
Compression.
A type of force that occurs when an object is being pulled or stretched
Tension.
Which scientist had the theory "for every action, there is an equal and opposite reaction."
Isaac Newton
What are two examples of temporary change?
Water and Rubber bands.
What is the definition of a force?
A push or pull on an object that can cause it to change its motion or shape.
What are two examples of permanent change?
Eggs and burning paper.
What are the four types of internal forces?
Tension, Torsion, Compression and Shearing
What type of force is pulling a sled?
List four examples of shearing.
Drilling a hole, tearing a piece of paper, using a can opener, using a cheese grater.
What is the difference between elasticity and plasticity?
Plasticity is permanently deformed. Elasticity allows an object to return to its original shape.
List four examples of compression.
Squeezing toothpaste, putting air in tires, sitting on a couch, and squishing a sponge.
A type of force that happens when two things rub against each other.
Friction.
Who created the Third Law of Motion?
Newton
List four examples of torsion...
Windup toys, turning a doorknob, twisting a towel, opening a jar.
List four examples of tension
Tug of War, Swinging, Climbing, Flying a Kite.
A force that acts along a string, rope, or any other type of cable or cord.
Tension.
These objects use a torsion spring inside them to store energy, which is then released to make the it move.
Wind up toys.