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10_Phys Final Part 1
By Lester Orellana
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Last updated almost 6 years ago
20 questions
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Note from the author:
Physics
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Question 1
1.
Force is the product of ...
Mass and acceleration
Matter and energy
Speed and weight
Mass and charge
Particles and waves
Question 2
2.
What is the velocity-time graph for this motion?
a.
b.
c.
d.
C
D
B
A
Question 3
3.
If an object is at rest, what must be applied to get it moving?
A force
acceleration
speed
energy
mass
Question 4
4.
Balanced forces cause a change in motion.
True
False
Question 5
5.
If gravity pulls you towards the centre of the Earth, why don't you fall through the pavement?
Because pavement does not react as an unbalanced force
Because gravity does not react as an unbalanced force
Because the pavement exerts an equal force in the opposite direction
Because gravity doesn't act through pavements
Question 6
6.
All of the following statements are true, except...
A moving object travels in a line until a force changes its direction
A moving object carries on moving until a force stops it
A moving object eventually runs out of force and slows down
An object is at rest because all the forces around it are balanced
7
8
zoom_in
1
Question 7
7.
A
D
B
C
1
Question 9
9.
Which concept means energy in motion?
C friction
B potential energy
A kinetic energy
D gravity
Question 10
10.
Which concept means stored energy of an object due its position ?
B potential energy
D gravity
C friction
A kinetic energy
Question 11
11.
What is the velocity-time graph for this motion?
a.
b.
c.
d.
B
A
C
D
Question 12
12.
What is the acceleration-time graph for this motion?
a.
b.
c.
d.
A
C
D
B
Question 13
13.
Where can we find the coefficient of dynamic friction in this graph?
A
B
C
Question 14
14.
At this point, we are pushing the object however far from moving it.
C
A
B
Question 15
15.
Is mass the same as weight?
Yes, because weight is the same force to gravity in a mass.
No, because weight is a force due to gravity in a mass.
No, because they have different forces.
Yes, because they have equal forces.
Question 16
16.
What is the magnitude (value) of the gravity with the correct units?
9.81 m
2
/s
-9.81 m/s
9.81 m/s
9.81 m/s
2
Question 17
17.
What is the magnitude of the initial velocity when we drop an iPhone X?
0 m/s
9.81 m/s
9.81 m/s
2
0 m/s
2
Question 18
18.
In this example, if the reference is the person, what is the correct expression for displacement of the iPhone X once hits the floor?
+220 m/s
- 220 m/s
+ 220 m
- 220 m
Question 19
19.
If this is an example of 1st Newton's Law, what is the correct magnitude and direction of the missing force?
Any force that is not - 20N
+20 N
- 20N
Any force that is not 20N
Question 20
20.
If this is an example of 2nd Newton's Law, what does +5N represent?
Friction force
Unbalanced force
coefficient of static friction
Normal Force
Question 8
8.
A
D
B
C
