PLEASE HURRY THIS IS URGENT
Which of the following is an example of sliding friction?
Question 3 options:
Leaning against a rock to take a break.
A marble rolling down a street
Rubbing sticks together to create a fire
Laying in bed reading a book
If you wanted to increase the gravitational force between two objects, what would you do?
Question 4 options:
Increase the distance between the two objects.
Decrease the distance between the two objects.
Decrease the mass of both of the objects.
Decrease the mass of one of the objects.
A skydiver has jumped out of a plane and is falling faster and faster. What forces are present in this situation?
Question 5 options:
air resistance
gravity
gravity, air resistance, and normal force
gravity and air resistance
What is the net force on this object?
Box with dot in center. Short arrow up, longer arrow down. Up arrow labeled F sub air equals 400 N. Down arrow labeled F sub grav equals 600N.
Question 6 options:
0 newtons
600 newtons
400 newtons
200 newtons
Which of the following is an example of static friction?
Question 7 options:
A marble rolling down a street
Leaning against a rock to take a break.
Rubbing sticks together to create a fire
A hockey player shooting a puck into the goal.
What should a free-body diagram look like for a skydiver that is still speeding up as he falls?
Question 8 options:
There is an arrow up for air resistance and an arrow down for gravity. The arrow up is shorter than the arrow down.
There is an arrow up for air resistance and an arrow down for gravity. The arrows are the same length.
There is only an arrow down for gravity.
There is an arrow up for air resistance and an arrow down for gravity. The arrow up is longer than the arrow down.
What is the net force on this object?
Small box with dot in the middle. Arrows originate at dot. Arrow up and Arrow down are same length. Arrow up labeled F sub norm equals 20 N and Arrow down labeled F sub grav equals 20 N. Arrow to the right is longer than arrow to the left. Arrow to the right is labeled F sub app equals 22 N and arrow to the left is labeled F sub frict equals 14 N.
Question 9 options:
36 newtons right
8 newtons right
22 newtons right
0 newtons
If you increased the mass of an object, what would happen to its gravitational pull?
Question 10 options:
It would depend on the distance of the object.
The gravitational pull would decrease.
The gravitational pull would increase.
Mass does not affect gravitational pull.
1st image is for question 6 2nd image is for question 9