Upcoming SlideShare
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Standard text messaging rates apply

# Force, pressure, and buoyancy

968

Published on

0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

Views
Total Views
968
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
39
0
Likes
0
Embeds 0
No embeds

No notes for slide

### Transcript

• 1. Force, Pressure, and Buoyancy
Review 7
• 2. Force, Pressure, and Buoyancy 1
What is the net force acting on the object?
5 N to the right
5 N to the left
20 N to the left
35 N to the right
• 3. Force, Pressure, and Buoyancy 1
What is the net force acting on the object?
5 N to the right
5 N to the left
20 N to the left
35 N to the right
• 4. Force, Pressure, and Buoyancy 2
What is the net force acting on the object?
50 N downward
2000 N downward
50 N upward
2050 N upward
• 5. Force, Pressure, and Buoyancy 2
What is the net force acting on the object?
50 N downward
2000 N downward
50 N upward
2050 N upward
• 6. Force, Pressure, and Buoyancy 3
A plant sits on a table that is outside. A strong wind blows from the right, but the plant does not move. Which of the following correctly identifies two of the four forces acting on the plant?
Z is friction and X is the force from the wind
W is friction and Y is gravity
Z is the force from the wind and W is friction
Y is gravity and Z is the force from the wind
• 7. Force, Pressure, and Buoyancy 3
A plant sits on a table that is outside. A strong wind blows from the right, but the plant does not move. Which of the following correctly identifies two of the four forces acting on the plant?
Z is friction and X is the force from the wind
W is friction and Y is gravity
Z is the force from the wind and W is friction
Y is gravity and Z is the force from the wind
• 8. Force, Pressure, and Buoyancy 4
In which situation are the forces acting on the object unbalanced?
A tricycle moves in a straight line at a constant speed of 3m/s
A car turns a corner at a constant speed of 25 m/s
A hot air balloon descends at a constant speed of 2m/s
A man stands on a moving sidewalk moving at a constant speed of 1.5 m/s
• 9. Force, Pressure, and Buoyancy 4
In which situation are the forces acting on the object unbalanced?
A tricycle moves in a straight line at a constant speed of 3m/s
A car turns a corner at a constant speed of 25 m/s
A hot air balloon descends at a constant speed of 2m/s
A man stands on a moving sidewalk moving at a constant speed of 1.5 m/s
• 10. Force, Pressure, and Buoyancy 5
The table lists the masses of four objects at rest. Put the objects in order from the object needing the least force to the object needing the most force to be moved.
X, Z, W, Y
Y, W, Z, X
W, Y, X, Z
Z, X, Y, W
• 11. Force, Pressure, and Buoyancy 5
The table lists the masses of four objects at rest. Put the objects in order from the object needing the least force to the object needing the most force to be moved.
X, Z, W, Y
Y, W, Z, X
W, Y, X, Z
Z, X, Y, W
• 12. Force, Pressure, and Buoyancy 6
Gravity is responsible for producing the shapes of all of the following objects, except
Planets
Stars
Solar systems
Atoms
• 13. Force, Pressure, and Buoyancy 6
Gravity is responsible for producing the shapes of all of the following objects, except
Planets
Stars
Solar systems
Atoms
• 14. Force, Pressure, and Buoyancy 7
A piece of wood floats on the surface of a lake because the water exerts
An upward force equal to the weight of the wood
A downward force equal to the weight of the wood
An upward force equal to the weight of the displacement water
A downward force equal to the weight of the displacement water
• 15. Force, Pressure, and Buoyancy 7
A piece of wood floats on the surface of a lake because the water exerts
An upward force equal to the weight of the wood
A downward force equal to the weight of the wood
An upward force equal to the weight of the displacement water
A downward force equal to the weight of the displacement water
• 16. Force, Pressure, and Buoyancy 8
A ball is dropped from the top of a tall building. As the ball falls, the upward force of air resistance becomes equal to the downward pull of gravity. When these two forces are equal in magnitude, the ball will
Flatten due to the forces
Fall at a constant speed
Continue to speed up
Slow to a stop
• 17. Force, Pressure, and Buoyancy 8
A ball is dropped from the top of a tall building. As the ball falls, the upward force of air resistance becomes equal to the downward pull of gravity. When these two forces are equal in magnitude, the ball will
Flatten due to the forces
Fall at a constant speed
Continue to speed up
Slow to a stop
• 18. Force, Pressure, and Buoyancy 9
A spring scale is pulled downward and readings are recorded. If the spring is pulled to 3.5 cm, the spring scale should read
12 N
13 N
14 N
15 N
• 19. Force, Pressure, and Buoyancy 9
A spring scale is pulled downward and readings are recorded. If the spring is pulled to 3.5 cm, the spring scale should read
12 N
13 N
14 N
15 N
• 20. Force, Pressure, and Buoyancy 10
A force is acting on each of the objects below. What can be concluded about these forces?
They are the same because they point towards an object
They are the same because they have the same magnitude
They are different because they have different magnitudes
They are different because they have different directions
• 21. Force, Pressure, and Buoyancy 10
A force is acting on each of the objects below. What can be concluded about these forces?
They are the same because they point towards an object
They are the same because they have the same magnitude
They are different because they have different magnitudes
They are different because they have different directions
• 22. Force, Pressure, and Buoyancy 11
Which direction will the object move and with how much force?
10 N to the left
10 N to the right
7 N to the left
7 N to the right
• 23. Force, Pressure, and Buoyancy 11
Which direction will the object move and with how much force?
10 N to the left
10 N to the right
7 N to the left
7 N to the right
• 24. Force, Pressure, and Buoyancy 12
This box will increase in speed
Upward and to the left
Downward and to the left
Upward and to the right
Downward and to the right
• 25. Force, Pressure, and Buoyancy 12
This box will increase in speed
Upward and to the left
Downward and to the left
Upward and to the right
Downward and to the right