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Physics Unit 2 Newtons Laws/Forces Flashcards | StudBud
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Physics Unit 2 Newtons Laws/Forces
Physics Unit 2 Newtons Laws/Forces
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Physics Unit 2 Newtons Laws/Forces chapter 3
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Questions
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1
The mass of a dog is 1kg and its is on planet earth. What is the dogs weight?
1 kg*m/s2
1/6th N
9.8 N
98 N
2
An object's property that resists change in motion
inertia
force
law of conservation
momentum
3
A person rollerblading is against which main friction?
rolling
fluid
static
stationary
4
What method do we use to solve word problems?
Ghetto method
Shirley method
PEMDAS method
Guess method
5
What is the formula to find weight?
Gravity
Mass x Gravity
Mass
Mass x Pounds
6
Acceleration is a rate of change in
momentum
velocity
position
time
7
P= mv the p stands for
power
mass
puppies
momentum
8
A person surfing is against which main type of friction?
fluid
sliding
rolling
static
9
A person trying to move a heavy object and it doesn't move, which friction is acting against them?
sliding
rolling
fluid
static
10
The gravitational force exerted on an object
weight
mass
force
acceleration
11
The amount of matter of an object
momentum
weight
mass
acceleration
12
Dribbling a basketball is an example of which Law?
Newton's 2nd Law
Newton's 1st Law
Newton's 3rd Law
13
An object at rest
Newtons 3rd law
Newtons 2nd law
Law of intertia
Newtons 1st law
14
__is the force that opposes the sliding motion of two surfaces that are touching
friction
gravity
static
Inertia
15
F=ma
Newtons 2nd law
Law of intertia
Newtons 1st law
Newtons 3rd law
16
What is the net force of an object that has 10 N of force applied in both direction?
0 net force
10 N
20 N
100N
17
A push or pull
weight
inertia
force
mass
18
Newton's first law is also known as the law of
force
velocity
conservation of momentum
inertia
19
A real car moving at 5 km/hr has more momentum than a toy car moving at the same rate because
it moves faster
its mass is less
friction
the mass is greater
20
Your stomach dropping on a roller coaster
Law of inertia
Newton's 3rd law
Newton's 2nd law
Newton's 4th law
21
Every action there is an equal and opposite reaction is
Newton's 2 law
Newton's 1 law
Newton's 3 law
Law of Inertia
22
As the skydiver falls to the earth what force besides gravity is playing a factor?
air resistance
the sun's rays
force of nature
normal force
23
The product of friction is
heat
an object moving
a spark
electrical current
24
If an object is at rest the forces acting on the object are
net forces
friction
balanced forces
unbalanced forces
25
The acceleration due to gravity is
.098 m/s2
98 m/s2
9.2 m/s2
9.8 m/s2
26
A rocket taking off
Newtons 2nd law
Newtons 1st law
Law of inertia
Newtons 3rd law
27
When finding forces if the arrow points in the opposite direction what do you do with the values?
multiply
divide
subtract
add
28
Problem solving on the test will be over
finding net force only
none, matching/multiple choice only
force, net force, weight
free body diagrams only
29
When you are in an elevator and feel your stomach drop it is an example of
Gravity
Newton's 2nd Law
Newton's 1st Law
Newton's 3rd Law
30
An egg is free-falling from a nest in a tree. Neglect air resistance. How many forces are acting on the egg?
2
4
3
1
31
In the absence of air, a feather and a hammer that are dropped at same height + time they will
float
fall at the same rate
fall at different rates
not have momentum
32
The relationship among mass, force, and acceleration is explained by
newton's first law
newton's second law
conservation of momentum
newton's third law
33
What net force is required to accelerate a car at a rate of 2 m/s
2
if the cars mass is 1000kg?
10 N
500 N
2000 N
300 N