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physics - Newton's Laws (1+2) Flashcards | StudBud
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physics - Newton's Laws (1+2)
physics - Newton's Laws (1+2)
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1
Jane's weight on Planet X is 200 N. What is the strength of gravity, if her mass is 50 kg?
10,000 m/s/s
10 m/s/s
2 m/s/s
4 m/s/s
2
Ayla thros a ball straight up with initial velocity of 20 m/s. What is the velocity after 1 second?
20 m/s
0 m/s
-10 m/s
10 m/s
3
A skater is coasting with constant velocity. Which would NOT require a net force?
skater accelerates
skater continues with CSL velocity
skater turns right
skater stops
4
Sunglasses on the dashboard will continue moving forward when the car turns, due to _________
velocity
acceleration
inertia
weight
5
Ayla thros a ball straight up with initial velocity of 20 m/s. What is the velocity after 3 seconds?
10 m/s
-10 m/s
0 m/s
20 m/s
6
When the forces of gravity and air resistance are equal for a falling object, it has reached ___________ velocity.
initial
terminal
final
average
7
If F = 3000 N, and acceleration is 3 m/s/s, what is the mass? (hint: F = ma)
3000 kg
6000 kg
1000 kg
9000 kg
8
What is one way of writing Newton's 2nd Law?
m = aF
a = m / F
a = Fm
F = ma
9
If the net force is 200 N, how many Newtons is force A?
200
100
400
300
10
A 20 N force is applied to each block. How much greater is acceleration for block A ?
four times greater
two times greater
The acceleration is the same.
five times greater
11
Newton's 1st Law: Motion can only be changed by __________
inertia
gravity
mass
force
