The force of this causes a sliding book to come to rest
What is sliding friction
100
On mountain roads travelers sometimes see signs that say "watch for falling rocks." What type of energy do these rocks possess before they begin to fall
What is potential energy
100
When shooting a basketball, you shoot the ball above the height of the basket, planning for what to make the ball drop to the hoop?
What is gravity
100
Newton's first law states that an object stays at rest unless this acts upon it.
What is an unbalanced force
200
Sliding friction is more or less force than rolling friction
What is more
200
An arrow fired from a bow follows the path shown, at what point does it have the greatest potential energy
What is number 3
200
The shower in which house has the greatest speed of water?
What is number 3
200
A student throws a water balloon at a friend. If no unbalanced forces act on the balloon it will
What is travel in a straight line
200
Which of these has the greatest inertia
bowling ball
pencil
toothpick
baseball
What is bowling ball
300
The more of this an object has, the greater its inertia or resistance to change in motion
What is friction
300
An arrow fired from a bow follows the path shown, at what point does it have the greatest kinetic energy
What is number 4
300
Which of these has the greatest kinestic energy?
A. 5000 kg elephant about to charge
B. 200kg motorcycle moving at 20km/hr
C. 1 kg bird flying at 25km/hr
D. 3000 kg truck moving at 30km/hr
What is D.
300
In tuf-of-war, what will happen if 2 teams are unbalanced in strength?
What is they will be pulled in the direction of the net force (stronger team)
300
A force is either of these two things
What is push or pull
400
Friction always acts in this to the direction of motion
What is opposite
400
Two tennis balls are held in the air, one at a height of 6ft and the other a height of 4ft, this one has the most potential energy
What is 6ft
400
This is the tendency of an object to resist change in motion
What is inertia
400
This friction is the type between stationary objects
What is static friction
400
This is energy of motion
What is kinetic energy
500
When you walk, you push on the sidewalk and the sidewalk does this to you
What is push
500
How can a student increase the potential of a bowling ball?
What is raise or lift it
500
If the net forces on an object are equal, the obect moves or stays still?
What is stay still
500
A person in a head on car collision who is not wearing a seat belt continues to move forward at the original speed beacuse of this force
What is inertia
500
This is energy stored due to an object's position.