Isaac ________ made 3 critical laws that govern the world of motion and forces.
Newton
100
Force per unit area exerted on an object is known as
Pressure
100
Density's unit of measure is
g/cm^3
100
What is the formula to calculate mass when given density and volume?
M=D x V
100
__________ principle explains hydraulic systems.
Pascal's
200
Name the four types of friction.
Static, rolling, sliding, fluid
200
Pressure is measured in
Pascals
200
The formula to calculate density is
d=m/v
200
The mass of 30cm^3 of salt is 45g. What is the density of the salt?
1.5 g/cm^3
200
A hydraulic system is used to increase _______.
force
300
Work output divided by work input is the __________ of a machine.
Efficiency
300
If a woman changes from running shoes to high heels, she ____________ the pressure exerted on the ground.
increases
300
If an object sinks in a fluid, the buoyant force is _______ the weight of the object.
less than
300
A force of 40N exerted over an area of 2m^2 exerts a pressure of
20 Pascals
300
In a hydraulic system, the pressure on the large piston is ______ the pressure on the small piston. (greater than, smaller than, or equal to)
equal to
400
A bar that is free to pivot about a fixed point is a
lever
400
If you are standing on one foot and then put both feet down, you have ______ the pressure on the ground.
decreased
400
As an object sinks in a fluid, the buoyant force does what?
Stays the same
400
To calculate area when given pressure and force, you should do
force divided by pressure
400
In a hydraulic system, the force exerted on the large piston is _______ than the force exerted on the small piston.
greater than
500
Complete the statement perfectly: According to Newton's 1st Law, An object at rest ______ at rest and an object in ________ stays in ________ unless acted on by a ____________ ____________.
stays; motion; motion; unbalanced force
500
50 mL of soda in a soda can exerts _______ pressure than 50mL of soda in a 1L bottle.
more
500
According to Archimedes, the buoyant force on an object is equal to
The weight of the fluid displaced
500
A pen has the density of 3 grams per cubic centimeter. The mass of the pen is 15.8 g. What is the volume of the pen?
5.3 cm^3
500
A hydraulic system uses a _________ to transmit pressure.