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