What is a natural phenomena?

an observable event that is not man made

What is mechanical advantage?

factor by which a machine multiplies the force put into it

What is an internal force?

Force that comes from within a structure

happens when forces push/pull in opposite directions

A weight that is supported by something

causes the object or structure to twist

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Structures and Forces

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Questions 17

Answers

1
Simple machines change the strength or direction of a force
False
True
2
What is an example of a "man-made" structure?
Lake
SkyScraper
Mountains
Rock Formations
3
What is a natural phenomena?
swimming pool
humans skipping
tree
an observable event that is not man made
4
What is mechanical advantage?
factor by which a machine multiplies the force put into it
a set of connected things or parts that form a whole
5
Which is not an example of a natural structure?
Bridge
Tree
Bee Hive
Beaver Dam
6
A well is an example of ...
Pulley
Wedge
None of the above
Screw
7
What is NOT an internal force?
Tension
Gravity
Compression
Shear
8
What is an internal force?
Force that comes from outside of a structure
Force that comes from within a structure
9
What is shear?
Causes an object to twist
pressed, pushedor squeezed experiences a force
pulls the particles of an object apart
happens when forces push/pull in opposite directions
10
Which is an example of a natural structure?
Eiffel Tower
CN Tower
birds nest
Pilgrim Wood School
11
What is a load?
The ability to support a load
A weight that is supported by something
The ability to maintain balance and stay in place
12
What is torsion?
forces push or pull inopposite directions
causes the object or structure to twist
an object is pressed, pushed or squeezed experiences a force
pulls the particles of an object apart
13
Do sports equipment help protect body parts for forces?
No
Yes
14
What is an example of a natural phenomena?
hurricane
earthquake
all of the above
tornado
15
What is an example of external forces
weather
gravity
all of the above
load
16
Scissors is an example of a ...
Pulley
Wedge
Lever
Wheel and Axel
17
A ramp is an example of ....
an inclined plane
a pulley
lever
a wedge

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