Forces
Friction
Net Force
Air resistance
Mixed
100
A force that applies when two objects touch.
What is contact force?
100
A force that resists the motion of two surfaces that are touching.
What is friction?
100
The net force something would have if it were being pushed 9 N south by two people.
What is 18N south.
100
What is the force applied by air when something falls.
What is air resistance?
100
What causes an object to move.
What is an unbalanced force.
200
A force applied without something having to touch another object.
What is non-contact force?
200
Friction that prevents objects from sliding past each other.
What is static friction?
200
The force an object would have if two equal forces where pushing it in opposite directions.
What is 0N?
200
The reason why the crumpled ball of paper has less air resistance than the regular piece of paper.
What is surface area?
200
A balanced force
What is 0N.
300
A force applied that pulls us down to Earth.
What is gravity?
300
Friction that OPPOSES the force of two objects sliding past each other.
What is sliding friction.
300
The total force an object has while multiple objects apply force to it.
What is net force.
300
Shape and size.
What are the factors that determine air resistance?
300
Newton's first law.
What is the fact that if a net force on an object is zero the motion of the object does not change.
400
A push or pull.
What is a force?
400
Friction between a surface and a liquid or gas.
What is fluid friction.
400
The net force of an object being pushed 20N east and 5 N west.
What is 15N east?
400
If there was no gravity.
What would be the only time a feather would fall as a rock would?
400
Inertia.
What is the tendency of an object to resist a change in motion.
500
Distance and mass.
What are two factors that affect the force of gravity?
500
What causes friction.
What are ridges and valleys.
500
The net force something would have if being pushed by 8 people with 8N north each.
What is 64N north.
500
When an object's bottom part fills with air and it starts to fall in a direction.
When do objects glide.
500
Galileo
Who was correct in their theories of falling objects.
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