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Who was the first person to study gravity?
Newton
What kind of force is gravity?
pull
What force attracts everything to the ground?
Gravity
T or F: Friction is higher on ice than on dirt.
False
In force diagrams, we use ____ to show forces.
Arrows
Forces are measured in...
Newtons
How can you demonstrate friction using your hands?
Rubbing them together
T or F: If forces are balanced, objects can break.
False
T or F: Unbalanced forces happen when one is bigger than the other.
True
Why doesn't gravity take you to the center of the Earth?
Because of the opposite force.
