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Newton's Laws Flashcards | StudBud
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Newton's Laws
Newton's Laws
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Answers
1
The unit for force is
kg
N
MPH
m/s2
2
Which law tells us it takes more force to accelerate something with greater mass?
2nd Law ..Law of force, mass and acceleration
3rd law ...Action reaction
1st law Inertia
3
Continued: When the car and truck collide how does the force acting on the car compare to the force on the truck?
Force on car is equal to the force on the truck
none of the above
Force on the car is less than the force on the truck
Force on car is greater than the force on truck
4
Wile E. Coyote initially struggles to move the boulder. Why?
The force applied by Wile E. is being cancelled out by gravitational force
The reaction force on Wile E. cancels out the force on the boulder
The boulder has a lot inertia so a lot of outside force required to accel
Wile E. skips leg day at the gym. Don't skip leg day bro
5
Why do roller coaster have lap and shoulder bars?
To keep you from flying out when there is a sudden stop
All of the above
To keep you from flying out when you go over a hill
To keep you from flying out when there is a sudden turn
6
If the same force is applied to one object with a mass of 60kg and one with 80kg,
the 60kg will experience more acceleration
The 80 kg will experience greater acceleration
both will accelerate the same
nothing will happen
7
Which of the following best describes the accelerations of the baseball bat and baseball when they collide?
The acceleration of the ball is greater than the acceleration of the bat
It depends on who the batter is and who the pitcher is.
The acceleration of the ball is equal to the acceleration of the bat
The acceleration of the ball is less than the acceleration of the bat
8
Which of the following best describes the magnitude of the forces on the baseball bat and baseball when they collide?
The force on the ball is equal to the force on the bat
The force on the ball is greater than the force on the bat
It depends on who the batter is and who the pitcher is.
The force on the ball is less than the force on the bat
9
When a small car and a massive truck meet in a head-on crash, how does the acceleration of the truck compare to the car?
Greater than that of the car
none of the above
Less than that of the car
The same as that of the car
10
Newton's 3rd Law states that forces must ALWAYS occur in _______.
Earth
Reactions
Actions
Pairs
11
Which of the following best describes the direction of the forces on the baseball bat and baseball when they collide?
The force on the bat is to the left, the force on the ball is to the right
The force on the bat is to the right, the force on the ball is to the right
The force on the bat is to the right, the force on the ball is to the left
The force on the bat is to the left, the force on the ball is to the left
12
Weight depends on mass and:
weight
height
composition
acceleration due to gravity
13
What are the three newtons laws
Force, balance, motion
Acceleration, friction, speed
Gravity, action and reaction, force
Inertia, acceleration, action force and reaction force
14
Choose the correct definition for Newtons 3rd law motion:
Each action has an equal and opposite reaction
Each action force has an equal and opposite reaction force
Each action has an unequal and same reaction
Each force has an opposite force with more force coming from larger objects
15
Weight and mass are not the same thing.
False
True
16
If two objects of different mass are moving at the same speed
both will require the same force to stop over the same distance
the greater mass will require more force to stop over the same distance
Can't be determined with the given info
the lesser mass will require more force to stop over the same distance
17
Watch the gif. Why doesn't Brian's car immediately fall into the water below once he reaches the end of the bridge?
1st law- Pre launch he was moving forward and up, that motion continues
2nd law- The engine is applying a net force that keeps him in the air
This is a terribly fake scene so no laws of physics apply.
3rd law.- car exerted a force on road, so road exerted an up force on car
18
A ball is thrown at a wall and bounces back. Which law of motion is this?
net force and acceleration
inertia
momentum
action force-reaction force
19
If the same force is applied to an object with a greater mass, it will have _____ acceleration.
the same
not enough info to answer
more
less
20
Net force equals mass multiplied by acceleration. Fnet=ma, or Net force = mass x acceleration
Newtons 3rd Law
Newtons 2nd Law
Newtons 1st Law
21
The unit for mass is
m/s2
MPH
N
kg
22
The unit for Acceleration is
N
kg
m/s2
MPH
23
What does the Law of Inertia state?
Object in motion stays in motion
None of these
Every action has an equal opposite reaction
Mass=Force
24
Why is it harder to overcome inertia of a bowling ball than a baseball?
Because a bowling ball is larger
Because the bowling ball has greater mass
Because the baseball has greater acceleration
Because the baseball has less momentum
