Science - Mechanical Objects / Forces and Motion Flashcards
_______ is the act of moving.
Force
In what ways can an object move?
Up and down
Back and forth
Zig zag
Straight
A pull or a push that makes something move is called a _______.
Force
An object moves _______ when you apply more force.
Faster
You need to apply _______ force to move heavier objects than lighter ones.
Greater
Would you need more fore to move a book or a pencil? Why?
More, because a book is heavier and it doesn’t roll
Is gravity a pull or a push?
Pull
_______ pulls things toward the center of the earth.
Gravity
Work happens whenever a _______ makes an object move.
Force
How can you make a soccer ball roll just a little bit?
By using a little force when kicking it
How could you make a baseball move really quickly?
By using a lot of force when throwing it
How could you make a wagon move around a corner?
By pulling the wagon and changing direction by turning it around the corner
What is gravity?
A force that pulls things towards the earth
What is friction?
A force that makes objects that are moving slow down or stop
How does friction change the motion of an object?
Friction makes an object slow down speed
How can you make sure an object keeps moving when friction is making it slow down?
Apply more force
List 5 examples of actions.
Push
Pull
Turn
Press
Electrical force
Explain what a Turn is.
Complete or partial rotation
Explain what it means to move horizontally.
Left-right translation
Explain what it means to move vertically.
Up-down translation
What do you call a movement where you are moving up-down and left-right all at the same time.
Helical
List the possible results of applying a force.
Roll
Move forward
Move backward
Throw
Propel
Whip
Mix
Cut
Balance
Oscillate
Topple
Movements can be _______ or _______.
Transmitted or transformed
What is the transmission of movement?
The communication of the same movement from one part to another with possible variations in speed.
Give an example of transmission of movement.
A marble that is rolling hits another marble and that one starts to roll. They are doing the same movement.
What is the transformation of movement?
An action that changes the nature of the movement
Give an example of transformation of movement.
Kicking a soccer ball. Your foot is moving forward but when you kick the ball it rolls. Your foot and the ball are doing a different movement.
Chain and cog wheel.
Is this an example of Transmission or Transformation?
Transmission - both cogs are turning
Gears
Is this an example of Transmission or Transformation?
Transmission - both gears are turning
Friction wheels
Is this an example of Transmission or Transformation?
Transmission - both wheels are turning
Pulley and belt
Is this an example of Transmission or Transformation?
Transmission - both wheels are turning
Wheel and worm gear
Is this an example of Transmission or Transformation?
Transmission - both the wheel and the worm are turning
Cam and roller
Is this an example of Transmission or Transformation?
Transmission - both the cam and roller are turning
Rack and pinion
Is this an example of Transmission or Transformation?
Transformation - the pinion is turning and the rack is moving from side to side
Rod and crank
Is this an example of Transmission or Transformation?
Transformation - the crank is turning and the rod is moving from side to side
Screw and rack or Screw and nut
Is this an example of Transmission or Transformation?
Transformation - the screw is turning and the nut is moving from side to side
Crank and slide
Is this an example of Transmission or Transformation?
Transformation - the crank is turning and the slide is moving from side to side
What happens when you apply force?
You produce movement
