the air pressure at the top of a mountain is higher than the air pressure
What is acting on an orbiting satellite
100
Two bojects are placed on a spring scale. The pointer moves to 4 for object A and 6 for object B. Object A weighs. ..
a. 3/2 as much as B
b. twice as much as B
c. 2/3 as much as B
d. three times as much as B
What is 2/3 as much as B
100
The weight of an object tells you ...
What is how heavy the object is
100
As you increase the depth of an object underwater, the water pressure on the object
What is increases
100
Empty Space
What is a vacuum
200
All of the following are fores except
what is mass
200
According to bernouli's principle, as the speed of a fluid increases, its pressure...
What is decreases
200
if the area remains the same, you can increase the amount of pressure by ...
What is increasing the force
200
a common lubricant in a car's engine is ...
What is oil
200
SI unit of force
What is Newton
300
Universal gravitation was discovered by
What is Newton
300
Hail falls to the ground because of the force of
What is gravity
300
lubricants are used to...
What is decrease friciton
300
The forward force that helps a plane take off is called?
What is thrust
300
force that opposes the motion of an object
What is friction
400
in order to Find the amount of pressure exerted on an object, you must divide
What is force by area
400
streamlining an airplane reduces
What is drag
400
The idea that all objects are attracted to one another is called
What is the law of gravity
400
an astronaut on the Moon dropped a 2-N rock and 7-N rock from the same height at the same time. Which will hit the surface of the Moon first?
What is they will hit the surface at the same time
400
Forces equal in size but opposite in direction
What is balanced forces
500
The force that opposes the downward motion of a falling object is called
What is air resistnce
500
Sand is sometimes spread on an icy surface in order to
What is increase friction
500
A chair has a weight of 7 N. as you push the chair, friction equal to a force of 5N pushes in the opposite direction. How will the total force needed to push the chair compare to the force of friction?
What is The total force will be greater
500
what does a spring scale measure
What is weight
500
Pressure caused by the force exerted by Earth's atmostphere