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How does the law of inertia effect the passengers in a car that is suddenly slowing down? (what will happen to the passengers)
They are abruptly pushed forward as their body wants to continue at the same speed as the train was traveling.
The force that causes objects to move in a circle is
centripetal force
When you kick a soccer ball and it moves the forces are _________ (balanced or unbalanced)
unbalanced
When two teams are playing tug of war and neither team wins. What can you say about the forces?
they are balanced
How do we describe force?
a push or a pull
What is inertia?
An objects resistance to a change in motion
Why did the golf ball push the cup farther than the other balls in the conservation of momentum lab?
because it had more momentum
An apple fell fro a tree at the rate of 2 m/s2 and hit my head with the force of 3N. What is the mass of the apple?
1.5kg
What is Newton's 2nd law?
Force = Mass x Acceleration
What is newton's first law?
An object in motion stays in motion, an object at rest stays at rest unless acted upon by an unbalanced force.
What is the acceleration of softball if it has a mass of 0.5 kg and hits the catcher's glove with a force of 25 N?
50 m/s2
What is the mass of a falling rock if it produces a force of 147 N?Acceleration of gravity is 9.8m/s2
15kg
A10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s2?
30 N
what are the two forces that stop an object in motion?
friction and gravity
What units is acceleration measured in?
m/s2
What is mass measured in?
Kg
