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