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Chapter 10: Force & Motion Flashcards | StudBud
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Chapter 10: Force & Motion
Chapter 10: Force & Motion
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Newton's Laws of motion, speed, velocity, graphs #motion #physics
Flashcards
18 cards
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Questions
18
Answers
1
Objects that are closer together will have
no change in gravitational pull
a stronger gravitational pull
major problems
a weaker gravitational pull
2
The tendency of an object to stay at rest is called
Friction
Motion
Inertia
Torque
3
What is the average speed of a car traveling 120 miles in 2 hours?
240mph
10mph
40mph
60mph
4
How much force is needed to accelerate a 50 kg cart 20 m/s
2
?
100 N
50 N
1,000 N
2.5 N
5
This ball will eventually stop due to
gravity
standing friction
cheese
rolling friction
6
An object with balance forces acting on it will...
not change its motion
Will accelerate
Slow down it's motion
Change Direction
7
Using the distance traveled over time graph, find the average speed of the runner
4 m/s
40 m/s
10 m/s
8 m/s
8
________ occurs when there are no other forces acting on an object, except gravity.
Freefall
9.81 m/s2
Space
Gravity
9
My car weighs 1,315 kg. How much force is needed to accelerate the car at a rate of 3 m/sec
2
?
4,000 N
3,945 N
483.33 N
3,256 N
10
Newton's Second Law of Motion says:
A=FM
F=MA
T=D/S
S=D/T
11
What is motion?
No movement
Stationary object
An object not moving because of the unbalance forces
Change of position over time
12
An object with unbalances forces acting on it, will...
Dance the night away
Move
Stay at rest
Not move
13
true or false: Smooth surfaces cause less friction.
True
False
14
I will need a greater force to move an object with more ___________________
Net Force
Mass
Motion
Speed
15
The rocket launching from the floor best represents which Newton's Law of motion?
Third
Second
First
None
16
100 kg is in free fall in a vacuum with no air resistance. What is the force pulling it down?
9.81 N
981 N
10.91 N
9.81 m/s2
17
What is the net force acting on the block?
5 N →
10 N →
10 N ←
0 N
18
A force of 300N is applied to an cart. It accelerates at a rate of 5 m/sec
2
. What's the mass?
1,500 N
60 kg
60 m/s2
1,500 kg
