A) work B) gravitation C) magnetism D) force E) friction
A) friction B) force C) work D) magnetism E) gravitation
A) friction B) magnetism C) work D) force E) gravitation
A) work B) force C) unbalanced forces D) balanced forces E) magnetism
A) work B) gravitation C) net force D) force E) power
A) work B) friction C) net force D) force E) power
A) friction B) unbalanced forces C) balanced forces D) power E) work
A) gravity B) newton C) magnetism D) friction
A) a nearby star acts on it B) it is placed on a flat surface C) it continues in a straight line D) an outside force acts on it
A) an equal and opposite reaction B) a greater force pushing on it C) a movement in all directions D) a force sending it backward
A) its frame of reference changes B) its momentum changes C) its mass and velocity changes D) Its position changes
A) the relationship between the four basic elements B) how frame of reference influences movement C) The movement of objects on Earth and in space D) Why all moving objects eventually stop moving
A) friction can be overcome for all objects B) gravitational forces are stronger on Earth than on the moon or other satellites C) People in a car move forward in their seats when the car stops quickly D) the ground pushes against your feet when you run
A) orbit B) reaction force C) law of universal gravitation D) inertia
A) inertia B) orbit C) Law of Gravitation D) action force E) reaction force
A) action force B) orbit C) Reaction force D) inertia
A) momentum B) speed C) velocity D) acceleration E) position
A) momentum of that object B) position of that object C) the speed of that object D) velocity of that object E) acceleration of that object
A) velocity B) momentum C) speed D) position E) acceleration
A) momentum B) speed C) velocity D) position E) acceleration
A) a spacecraft can travel in space for thousands of years B) a ball thrown into the air always falls back toward Earth C) a pole can be knocked down when a moving car hits it D) trucks slow down when they are travelling uphill
A) a wedge and a pulley B) a pulley and a screw C) A screw and a wedge D) a lever and a wedge
A) a magnet B) a machine C) speed D) friction
A) a force B) a current C) a power D) a machine
A) magnetism B) power C) force D) work E) friction |