A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
Balanced Forces, Constant Speed
Balanced Forces, Acceleration
Unbalanced Forces, Constant Speed
Unbalanced Forces, Acceleration
2. Multiple Choice
20 seconds
1 pt
How will this object move?
It won't move.
It will move to the right.
It will move to the left.
It will move up.
3. Multiple Choice
1.5 minutes
1 pt
How will this object move?
It won't move.
It will move to the right.
It will move to the left.
It will move in both directions.
4. Multiple Choice
1 minute
1 pt
What is the net force?
30 N left
25 N right
5 N left
55 N right
5. Multiple Choice
20 seconds
1 pt
What is the net force?
40 N left
0 N Balalnced
400 N right
40 N right
6. Multiple Choice
1 minute
1 pt
Which could be an example of a balanced force?
An asteroid moving at a constant speed through space
A car accelerating from a stop sign
A box of dishes falling from a counter
A rocket taking off
7. Multiple Choice
1 minute
1 pt
Which could be an example of an unbalanced force?
A plate sitting on a dining table
A ball at the top of a hill that is not moving
Earth orbiting the Sun
A baseball that has been thrown to home plate.
8. Multiple Choice
45 seconds
1 pt
Calculate the Net Force.
60N, Left
40N, Right
0N
60N, Right
9. Multiple Choice
1.5 minutes
1 pt
Calculate the Net Force.
40N, Left
40N, Right
0N, Balanced
75N, Right
10. Multiple Choice
20 seconds
1 pt
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
60 N right
10 N left
60 n right
50 N left
11. Multiple Choice
1 minute
1 pt
What is the net force?
10 N
0 N
25 N
1 N
12. Multiple Choice
30 seconds
1 pt
Forces that have a net force of zero ( the object is still).
Balanced force
Unbalanced force
13. Multiple Choice
30 seconds
1 pt
What is the net force?
5000 N right
4000 N right
40 N left
4000 N left
14. Multiple Choice
30 seconds
1 pt
A force acting in the opposite direction of an object in motion
Gravity
Buoyant
Friction
Normal
15. Multiple Choice
30 seconds
1 pt
The sum of all forces acting on an object and direction
Contact Force
Balanced Force
Unbalanced Force
Net Force
16. Multiple Choice
30 seconds
1 pt
What is the net force in this diagram?
8N right
2 N right
8N left
2N left
17. Multiple Choice
30 seconds
1 pt
What is the net force of an object that is not moving?
0N
100N
Upward force
18. Multiple Choice
30 seconds
1 pt
Why does a book on a table not move?
No forces are acting on the book
Gravity is the only force acting on the book
Forces of the table pushing up and gravity pulling down are balanced
19. Multiple Choice
30 seconds
1 pt
What is the unit of force?
Kilogram
Meter
Pascal
Newton
20. Multiple Choice
30 seconds
1 pt
What is the net force?
400 N Up
400 N Down
- 400 N Down
800 N Down
21. Multiple Choice
30 seconds
1 pt
A ____________ is a push or a pull on an object.
chemical
force
magnet
gravity
22. Multiple Choice
30 seconds
1 pt
Forces can change the ________ of a moving object.
direction
push
pull
friction
23. Multiple Choice
30 seconds
1 pt
The plate shown suddenly move. Describe the forces and resulting motion.
Balanced Forces, Constant Speed
Balanced Forces, Acceleration
Unbalanced Forces, Constant Speed
Unbalanced Forces, Acceleration
24. Multiple Choice
1 minute
1 pt
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?
50N to the left.
350N to the left.
350N to the right.
50N to the right.
25. Multiple Choice
20 seconds
1 pt
If these boys are pulling with the same amount of force. What will happen?
The boy in blue will win.
They will not move at all.
The boy in red will win.
Both will fall down.
26. Multiple Choice
30 seconds
1 pt
Which could be an example of an unbalanced force?
A plate sitting on a dining table
A ball at the top of a hill that is not moving
Earth orbiting the Sun
A baseball that has been thrown to home plate.
27. Multiple Choice
30 seconds
1 pt
Which could be an example of a balanced force?
An asteroid moving at a constant speed through space
A car accelerating from a stop sign
A box of dishes falling from a counter
A rocket taking off
28. Multiple Choice
10 seconds
1 pt
Balanced or Unbalanced?
Balanced
Unbalanced
29. Multiple Choice
30 seconds
1 pt
Calculate the Net Force.
40N, Left
40N, Right
0N, Balanced
75N, Right
30. Multiple Choice
2 minutes
1 pt
Acceleration of an object happens when things ________
slow down
go faster
change direction (turn)
All of the above
31. Multiple Choice
15 minutes
1 pt
Calculate the average speed (in meter/sec) if a cheetah runs 180 meters in 10 seconds.
198 m/sec
170 m/sec
12 m/sec
18 m/sec
32. Multiple Choice
2 minutes
1 pt
What is the formula to calculate speed?
S = t/d
S = d/t
S = d x t
S = t x d
33. Multiple Choice
2 minutes
1 pt
What is velocity?
the quickness of an object
the location of an object
acceleration
speed in a specific direction
34. Multiple Choice
3 minutes
1 pt
Find speed when distance is 142 km and time is 2 hours.
71km/hr
52km/hr
17km/hr
90km/hr
35. Multiple Choice
3 minutes
1 pt
Alan travels 100km in 5hrs. Find his average speed in km/h
5km/hr
10km/hr
50km/hr
20km/hr
36. Multiple Choice
1 minute
1 pt
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
10 m/s
1000 m/s
100 seconds
10 seconds
37. Multiple Choice
1 minute
1 pt
What is the formula to calculate speed?
Speed = time/distance
Speed = distance/time
Speed = distance x time
Speed = time x distance
38. Multiple Choice
1 minute
1 pt
Acceleration is defined as the CHANGE in
time of motion to another place.
velocity
distance
speed
39. Multiple Choice
1 minute
1 pt
Acceleration only takes place when things speed up.
True
False
40. Multiple Choice
1 minute
1 pt
Changes in our speed, direction or both are called _________.
gravity
changes
acceleration
deceleration
41. Multiple Choice
30 seconds
1 pt
According to the graph how far does the person travel in the first 5 seconds?
2 m
10 m
0 m
5 m
42. Multiple Choice
30 seconds
1 pt
What is the person doing from 5 seconds to 10 seconds?
Walking
Running
Standing Still
Walking Fast
43. Multiple Choice
30 seconds
1 pt
What is the average speed of the person during the first 5 seconds?
0 m/s
1 m/s
3 m/s
6 m/s
44. Multiple Choice
5 minutes
1 pt
What is velocity?
the quickness of an object
the location of an object
acceleration
speed in a specific direction
45. Multiple Choice
5 minutes
1 pt
Which runner won the race?
A
B
C
46. Multiple Choice
2 minutes
1 pt
If there are two forces going in the same direction how would you find the net force?
Subtract
Add
Neither
Multiply
47. Multiple Choice
2 minutes
1 pt
With unbalanced forces, the object will move in the direction of the _______ force.