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WorksheetsScience Ch. 2
Total questions: 16
Worksheet time: 6mins
What is weight?
weight is the amount of matter in an object
weight is the gravitational force exerted on an object
weight is a force that resists the motion of two surfaces that are touching
weight is the mass of a cupcake
what's the difference between a contact and non-contact force?
you are now thinking about baked potatoes
the objects are touching for non-contact force and not for contact force
the objects are touching for contact force, and they aren't for non-contact
gravity is an attractive force that exists between all objects that have mass
(a) resists the motion of two surfaces that are touching
What are some different kinds of forces?
contact
mass
non-contact
gravitational
Which law of motion is this: an object in motion or at rest tend to stay in motion or at rest unless acted upon by an outside force.
1
2
3
In circular motion, which force acts towards the center of the curve?
centripetal
circular
unbalanced
balanced
How does an unbalanced force affect a moving object?
It stops it from moving
It changes the velocity
It changes the mass
it changes friction
If there were 100N to the right and 100N to the left, it move move to the right.
True
False
Force = mass x velocity (F=mv)
True
False
What is the formula for momentum?
P = m/v
M = mv
P = mv
M = m/v
What is the third law of motion?
Every action is duplicated
Every action has an equal and opposite reaction
Every action only has an opposite reaction
Every action only has an equal reaction
If there was a force of 200 N in one direction and 200 N in the other direction, what would be the net force?
400 N
0 N
-400 N
200 N
Which of Newton's law's is this: Every action has an equal and opposite reaction.
1
2
3
What are the forces that two objects apply to each other called?
(a)
the measure of how hard it is to stop a moving object
momentum
friction
balanced forces
unbalanced forces
Billiard balls gain the momentum lost by the cue ball. What is this an example of?
conservation of acceleration
friction
conservation of momentum
law of mass
