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Its all about gravity and Friction
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Objects balanced on Timmy's head would be an example of which type of friction?
Static Friction
Wheels of a shopping cart would be an example of which type of friction?
Rolling Friction
Sally sliding down the slide would be an example of which type of friction?
Sliding friction
When most objects with smooth surfaces rub, there is less friction. (True or False)
True
How does friction affect speed?
more friction decreases speed
Which type of friction occurs when objects are not moving?
static friction
Which type of friction occurs when an object rolls over or rotates on a surface?
Rolling friction
Which type of friction occurs when solid surfaces slide over each other?
sliding friction
Which type of friction occurs when an object moves through a liquid or gas?
fluid friction
Friction is a force that acts in an ___________ direction of movement.
opposite
Heavier objects fall faster (True or False)
False
Weight and mass are the same thing. (True or False)
False
There is no gravity in outerspace. (True or False)
False
Gravity exists between all objects that have mass (True or False)
True
Without Gravity we would all what?
be weightless, weightless, floating
Without Gravity the Earth would not orbit the Sun? (True or False)
True
Who discovered Gravity?
Sir Isaac Newton
Gravity pulls down? (True or false)
false
The Moon is stuck in orbit around the Earth, due to Earth's gravity. (True or False)
True
What is gravity?
The force that pulls objects to the ground
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