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Forces DCA Review Flashcards | StudBud
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Forces DCA Review
Forces DCA Review
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#forces
Flashcards
28 cards
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Questions
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Answers
1
RANDOM TRIVIA: What is a group of rhinoceros called?
A Group
A crash
A heard
A pod
2
Force is measured in _____.
kilograms
meters per second
Newtons
coulombs
3
A direct push or pull on an object by a person or other object is called a __________ force.
air resistance
applied
normal
friction
4
What is best description of this object's motion?
Moving to the left, and speeding up
Moving to the left, and slowing down
Moving to the right, and speeding up
Moving to the right, and slowing down
5
When a ball is thrown on earth straight up, at its highest point, what is its acceleration?
0.5m/s2, up
0m/s2, down
9.8m/s2, up
9.8m/s2,down
6
Which example describes Newtons 3rd Law?
A full grocery cart requires more force to push than an empty cart
A rocket blasting off from the launch pad
A fireman turns on a hose and is knocked backwards
A soccer ball will not move until it is kicked
7
Taylor Swift Trivia: Which of these songs is not in her new album, Lover?
King of My Heart
ME!
It's Nice to Have a Friend
You Need to Calm Down
8
A book sits on a table. What force, acting on the book, is missing from this free body diagram?
gravity
applied
friction
normal
9
What is the net force on the object shown in the free body diagram?
15 N
15 N left
15 N right
10 N down
10
If a net force 10F is applied to an object with mass 2m, what is the acceleration on this object?
a
2a
5a
10a
11
Which free body diagram shows the forces on a PASCO car accelerating to the left?
Both
A
Neither
B
12
Which would have more inertia?
A car going 60 mph
A fly resting on a desk
A Train
A school bus
13
What is the net force on the object shown in the free body diagram?
0 N
5 N right
5 N
5 N left
14
Which free body diagram models the forces on a skydiver falling at a constant velocity?
B
A
Neither
Both
15
What's the best description of this objects motion?
It is moving to the right, at a constant velocity
It is accelerating to the left
It is moving to the left, at a constant velocity
It is accelerating to the right
16
Which example below has a net force of zero?
A cart rolling down a ramp from rest
A van moving at a constant speed
A car begins moving from rest at a stop light
A ball moving upwards after being thrown upwards on Earth
17
In a tug of war,a person pulls with a F of 500N against another person What is the tension F in the center of the rope
250N
1000N
0N
500N
18
When an object is supported by another stable object, like a table, it experiences this force.
applied
gravity
normal
air resistance
19
The term net force most accurately describes
the inertia of an object
the mass of an object
the quanity that changes the velocity of an object
the quantity that keeps an object moving
20
Newton's 3rd Law states that forces must ALWAYS occur in _______.
Pairs
Earth
Actions
Reactions
21
Are the forces on this object balanced?
Maybe
No
It is impossible to tell
Yes
22
Are unbalanced forces...
Equal
Unequal
23
When an object slides across a surface, it experiences this force.
friction
air resistance
applied
normal
24
Random Trivia :
Who discovered penicillin?
Alexander Fleming
Louis Pasteur
Neil deGrasse Tyson
Gregor Mendel
25
Han Solo tries to escape Imperial forces by landing on what irregular-shaped, rocky object?
Moon
Meteor
Asteroid
Comet
26
All objects on the planet Earth experience this type of force
friction
air resistance
applied
gravity
27
When should you subtract net forces?
When there is a balanced force.
When there is no motion.
When the forces are moving in opposite directions.
When the forces are moving in the same direction.
28
A kid pedals her bike through the park. What forces are acting on the bike?
applied force, air resistance, gravity
applied force, normal force, gravity
applied force
applied force, air resistance, friction, gravity, normal
