Mass
What property of an object stays the same, regardless of its location?
Mass
An object’s weight stays the same no matter where it is in the universe.
True or False?
False
If an object is larger, the gravitational force near it is smaller
True or False?
False
In a force diagram, what does the direction of the arrow indicate?
The direction of the force
Name one dead load and one live load
multiple answers
What is the SI unit of force, and what is the symbol for this unit?
The SI unit for mass is kg or g
If a person had a mass of 5 g what would be their weight on earth?
10 N
What is weight measured in?
Newtons
Force Diagrams can help us find the effect of several______acting on one object
Fill in the blanks
Forces
This internal force pulls materials apart, elongating the object.
tension
What is the name of the instrument that is used to measures an object’s mass using the pull of gravity?
A Balance
What is the name of the instrument used to measure forces?
spring scale
Who discovered that gravitational force depends on the masses of objects and the distance between them?
Isaac Newton
What do the arrows on the force diagram represent the strength and direction of?
They represent the strength and direction of one or more forces.
This internal force pushes materials together, often shortening the object.
Compression
What is the name of a measurement equal to 1000 grams?
Kilogram
What is the force acting opposite of a push or a pull horizontally when moving a box
friction
Why would a person weigh less on the moon compared to Earth?
Because the moon exerts less gravitational force because of its smaller size.
What do the lengths of the arrow on the force diagram show the size of?
They show the size of the force.
This internal force causes one part of a material to slide past an adjacent part, often seen in beams.
shear
What country invented the metric system in 1795?
France
To completely describe a force, what two aspects do you need to determine?
Direction and size
What is the difference between mass and weight?
Mass is the amount of matter that an object is made of,while weight is the force with which gravity pulls on an object.
When an elevator is standing still, the force of the cable pulling it up is the same as the force of gravity pulling it down.
True or False?
True
This internal force twists a material about its axis, often experienced in circular shafts.
torsion