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