Types of Internal Forces
A force crushing a material or object by squeezing it together.
What is compression
A violent, rotating column of air extending from a thunderstorm to the ground
What is a tornado.
The force that acts by pulling objects toward the ground
What is gravity
Name an external structure on a plant
What is a stem, leaf, root, flower
What protective equipment do we wear on our head to protect from a fall?
What is a helmet
A force that stretches something. You might say it makes you feel tense.
What is tension
This occurs when the plates of the earth's crust move and they exert forces on themselves and each other
What is an earthquake.
This force creates resistance to movement between objects that are touching. It can also create heat when you rub your hands together
What is friction
What structure on a cactus is very large and thick that allows it to survive in very dry weather?
What do protective equipment do to protect you if hit?
What is the way the force of impact is spread out so it doesn't focus on one spot.
A force that twists something in opposite directions.
What is torsion.
This can be caused by underwater volcanoes or earthquakes and can cause huge waves and flooding
What is a Tsunami.
To force forward, downward or outward
What is a push.
What keeps animals resist forces that stops them from breaking? (starts with an "f")
What is flexibility
How does a seatbelt help you be protected from force?
It spreads the stopping force across your chest and lap so it doesn't impact you all at once.
What happend when there is greater tension on one side and greater compression on the opposite side. Like when your spooning ice cream that is too hard?
What is bending?
A huge, swirling mass of air that forms over water when warmer air meets cooler air, sometimes hundreds of kilometers wide and lasting for several days
What is a hurricane.
applying force to move something toward or with you
What is a pull
What do turtles have to protect themselves from natural forces.
What is a hard shell
Why do fire fighters wear special clothing?
To protect themselves from extreme heat to move safely through a fire.
A force when you press material in opposite directions at the same time, for example cuttine with scissors.
What is shear force.
This can help a sailboat move forward, help to fly a kite, or destroy roofs and buildings and even destroyed a bridge
What is wind.
T or F Natural disasters are weak external forces
What is false?
What animal has natural built in shock absorbers to soften a fall.
What are cats.
What is newtons.