Clothes on the floor of your room don't pick themselves up, but rather continue to lay where they were left. This is because of their _____________.
What is inertia?
100
Newton's 3rd law states that forces come in ________.
What is pairs?
100
Rockets lift off when this action/reaction pair occurs?
What is fuel down, rocket up?
200
The unit of force
What is a Newton (N)?
200
This is the force that slows down wheels on a skateboard.
What is rolling friction?
200
Newton's first law says that all things have intertia, which is the tendency for things to resist changes in this.
What is motion?
200
When jumping in the air, the action force is your feet pushing on the ground. What is the reactio force?
What is the ground pushing on your feet?
200
This force keeps things moving in a circular path.
What is centripetal force?
300
The 2 things used to describe a force (similar to velocity)
What are strength and direction?
300
The 2 forces that affect gravitational attraction
What are mass and distance?
300
Mathematically speaking, Newton's second law stated this.
What is Force = Mass (Acceleration)?
300
Momentum is a characteristic of motion that is directly related to _________ and ________________.
What are mass and velocity?
300
This is the velocity at which a parachuter lands, for instance.
What is terminal velocity?
400
-----> 5 N, ----------> 10 N, and <-------7 N all applied to the same object will combine to a net force of this?
What is --------> 8 N?
400
This is what occurs when the only force acting on something is gravity. The acceleration in this case is _______ m/s2.
What is free fall; 9.8?
400
When the mass of an object increases, the _________ must also increase for the object to maintain constant acceleration.
What is force?
400
The total momentum of any group of interacting objects is __________________.
What is conserved?
400
This is the term for something that orbits another object in space.
What is satellite?
500
------------------------->25 N, ---------->10 N,
<--------- 9 N, <----------------------22 N, <---- 4 N all on the same object will combine to a net force of ___________?
What is 0 N (no movement)?
500
A fired bullet, a pitched softball, a soaring arrow, but not an airplane in flight
What is a projectile?
500
Find the force it would take to accelerate a 400 kg motorcycle at a rate of 5 m/s2.
What is 2000 N?
500
Which has more momentum, a 5 kg toy boat moving at 10 m/s or a 4 kg toy train moving at 12 m/s?