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Newtons 3rd Law

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Last updated over 1 year ago
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In the mysterious yet exciting world of science, there are a series of laws called "Newton's Laws of Motion," named after the famous scientist, Sir Isaac Newton. The third law, often described as "for every action, there is an equal and opposite reaction," might seem a bit confusing at first. But, it's simpler than it sounds, and you see it play out in your everyday life. Consider a commonly observed example: Skateboarding. When a skateboarder pushes off the ground, they move forward. Here, their foot pushing the ground is the 'action,' and the 'reaction' is their body moving forward. Due to the third law, the force their foot puts on the ground is equal to the force the ground gives back, allowing them to move. Imagine yourself on a stationary boat and you decide to jump off one end, you would notice the boat move backward as you move forward. Although it might seem that your jump is causing the boat to move, it's actually the force you exert when jumping off that's pushing the boat in the opposite direction. That's Newton's third law in action! Certainly, Newton's third law isn't just related to skateboarding and boats. It's a fundamental principle that governs the motion in our universe, from the launching of rockets to even the flight of birds. This law helps us predict how objects will move and interact, making it an essential piece of understanding in science. So remember, every time you see an object move, it's due to an equal and opposite force at play, a secret science spectacle illustrating Newton's third law!
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Apply Newton's Third Law of Motion to analyze and categorize the following examples:
pushing the boat backwards to move forwards
foot pushing on the ground and ground pushing back
pushing the water backwards to move forwards
Jumping off a boat
Walking
Swimming
Identify correct category according to Newton's Third Law for these actions:
fist hits and opponent gets pushed back
ball hitting the floor and bouncing-back
wheels push the road backwards, car moves forwards
Boxing Punch
Bouncing a Ball
Driving a Car
Categorize these physical activities according to Newton's Third Law:
gravitational force pulling down and air resistance pushes up
hand pushes the ball and the arm feels a force backwards
oar pushes the water backwards, the boat moves forward
Skydiving
Throwing a baseball
Rowing a boat
Assign the category reflecting Newton's Third Law for the following actions:
air pushes out from balloon, balloon expands equally
gun pushes the bullet, equal force pushes the gun back
pulling on the rope and feeling an equal force backwards
Blowing up a balloon
Firing a gun
Playing tug of war
Which scenarios demonstrate Newton's 3rd Law of Motion?
A boat floating on water
A rocket blasting off into space
A ball in freefall
Hitting a baseball with a bat
How does Newton's 3rd Law relate to swimming?
Pushing water backwards propels the swimmer forward
Water supports the swimmer's weight
Feet kick water back, body moves forward
Swimmer's hands move in a swimming motion
What real-life action illustrates pushing another object resulting in equal and opposite reaction?
Eating dinner
Jumping off a diving board
Watching TV
Hitting a drum with a stick
If you push a wall, what happens based on Newton's 3rd law?
Your hand will go through the wall
You may feel a slight recoil
The wall pushes back with equal force
The wall will fall down
Newton's third law states that for every action, there is ____.
an equal and opposite reaction
a reaction of the same magnitude but opposite direction
No reaction
a smaller counter reaction
If a bird flies into a window and bounces back, what does this exemplify?
action-reaction principle
Newton’s third law
Bird's inability to see glass
Law of conservation of energy
In a rocket launch, what pushes the rocket upwards?
Reaction force
It's because of heat
The force of gases expelled downwards
The rocket's internal engine
In accordance with Newton's third law, what causes a skateboarder to move forward when they push off the ground?
An equal and opposite force from the ground.
Wind direction.
Gravity's influence.
The force of their foot alone.
What is Newton's third law often described as?
For every action, there is an equal and opposite reaction.
Gravity pulls objects to the ground.
Objects in motion stay in motion.
Force equals mass times acceleration.
What example is given to explain Newton's third law aside from skateboarding?
Driving a car.
Flying a kite.
Jumping off a stationary boat.
Throwing a baseball.
According to Newton's third law, why does a boat move backward when you jump off it?
The wind pushes the boat.
The water's current moves the boat.
Your weight is removed from the boat.
Your force when jumping off pushes the boat backward.