test Flashcards
Measure of matter particles
MASS
Measure of gravitational pull
WEIGHT
Standard UNITS of measurement
for MASS
Kilograms Kg, grams, milligrams (mg)
Standard UNITS of measurement for WEIGHT
newtons
Measuring DEVICE used to measure MASS
Balance scale
Measuring DEVICE used to measure
WEIGHT
Force meter spring scale
Will it CHANGE whether you are on earth or on the moon MASS
No
Will it CHANGE whether you are on earth or on the moon WEIGHT
YES
what is Tension
Stretch a material by pulling its ends apart.
what is Compression Force
Crush a material by squeezing it together
what is Shear Force
Bend or tear a material by pressing different parts in opposite dire
what is Torsion Force
Twist a material by turning the ends in opposite
what is External forces
- forces on the outside of the structure wind rain people
what is Internal forces
stresse within the materials of a structure breaks tears twisting bruise
give three examples of tension
rubber banddd, tug of war, pull a t shirt
give three examples of Compression
Crush pop can, squishy toy, walking on carpet
give three examples of Shear Force
Breaking a window,
landslide cutting grass,
give three examples of Torsion Force
Twisting towel
Twist your ankle
Turn a tap
what are the forces present in bending
compression
Tension
What is a lever
A lever is a device that can change the amount of force needed to move an object. Some types of levers consist of a long arm that rests on a pivot, or fulcrum.
