The tendency of objects to keep doing what they are doing (moving or staying at rest)
What is inertia
100
For every action, there is an equal and opposite reaction
What is Newton`s third law of motion
100
If you hit a home run in space, what would happen?
What is it will come in contact with other bodies (stars, planets, etc.)
100
Which of the following is an example of a contact force?
What is B- friction
200
A force that must touch an object to change its speed and or direction.
What is contact force
200
The amount by which the opposing forces acting on an object are unequal.
What is net force
200
A force that acts on an object to change its speed or direction from a distance
What is noncontact force
200
Suppose the Sharon rides her bike at a speed of 10 m/s. As she rides up a hill, her speed decreases to 5 m/s. Is her acceleration positive or negative?
What is the acceleration is negative becuase gravity is acting upon you.
200
In which situation are the forces acting on the object balanced?
What is C- A hot air balloon rises at a constant speed.
300
A push or pull that causes something to change its motion
What is force
300
The metric unit used to measure force or weight
What is newton
300
The force that pushes up to support the weight of an object.
What is normal force
300
Now suppose Sharon rides her bike down the street in 20 seconds. During this time, her speed remains constant at 5 m.s What is the value of her acceleration during this time?
What is balanced at 0 m/s
300
The net force acting on the object is 0 N. Which of the following best describes the motion of the object?
What is D- The objects motion is not changing.
400
A force that occurs when two things move past each other and rub together.
What is friction
400
If the forces acting on an object are balanced, the object will continue doing what it is doing.
What is Newton`s first law of motion
400
Gabe kicked a soccer ball across the field. The ball rolled for a while but eventually stopped. If Newton`s first law is true, it seems that the ball Gabe kicked should continue rolling forever. Why does the ball stop?
What is friction from the ground stops a soccer ball when you kick it.
400
Dave is driving down the street. If Dave steps on the brakes, what force slows his car?
What is friction slows you down when you step on the brakes
400
Sean pushes a parked car with a force of 80 Newtons. The car does not move. Which of the following best describes the force that the car exerts on Sean?
What is A- the same amount of force as Sean exerts
500
A force that acts without physical contact to pull two projects toward each other.
What is gravity
500
The acceleration of an object is related to the net force acting on it and the mass of the object.
What is Newton`s second law of motion
500
Suppose you are playing baseball and hit a home run. What force slows down the ball while it is in motion?
What is Friction from the bat and gravity slows down the baseball
500
What force causes a ball to speed up as it rolls down a hill?
What is Gravity causes a ball to speed up as it rolls down a hill.
500
Which force has the greatest influence on the structure of solar systems and galaxies?