Force
True or False. A bike on grass is a form of friction?
What is true?
Mass is the amount of ____ in an object.
What is matter?
If Pod A has a much larger mass than Pod B, which pod will have the greater change in velocity after a collision?
Pod B (the smaller mass changes velocity more).
What two things determine how much an object’s velocity changes when a force is applied?
What are the object’s mass and the size of the force?
A push or a pull on an object.
What is force?
The force that resists motion when two surfaces rub together.
What is friction?
Which object requires more force to accelerate: a bowling ball or a tennis ball?
What is the bowling ball?
In a collision between two pods of equal mass moving at the same speed toward each other, what happens to their motion after the collision (if perfectly elastic)?
They bounce back with equal but opposite velocity changes.
A soccer ball will not move until you kick it. Which law is this?
Newton’s 1st Law
To apply or put forth a force, effort, or influence on something.
What is Exert
If two people push on a box in opposite directions with equal force, what happens to the box?
What is it doesn’t move (balanced forces)?
If the same strength force is exerted on two objects, one with larger mass and one with smaller mass, which one will accelerate more?
The one with smaller mass.
During an Amplify simulation, two pods collide head-on with equal but opposite forces. Why do they not always have the same change in motion?
Because their masses are different; mass affects how much velocity changes when forces are applied.
Two pods exert equal forces on each other in a collision. Why does the less massive one change velocity more?
Newton’s 2nd Law (acceleration depends on mass).
A model used to predict or explain motion, forces, or collisions.
What is a simulation or model?
A 30 N force to the right and a 10 N force to the left act on an object. What is the net force and direction?
What is 20 N to the right?
Why did the Amplify Science “pod” move less than expected even though its thrusters fired with normal force?
Because its mass was greater than usual, so the same force produced less acceleration.
Two pods collide in space. Pod A is more massive than Pod B. Which pod has the greater force on it during the collision?
Neither — both pods experience equal forces (Newton’s 3rd Law).
A swimmer pushes back on the water with her arms, and the water pushes her forward. Which law explains this?
Newton’s 3rd Law
The measure of how far an object has moved.
What is distance?
Which one of these two are true? A.Friction takes place when you go down a slide. B.Friction takes place when you try to go down a street on a metal sled.
What is B.
True or False: A more massive object always moves slower than a less massive object when force is applied.
False — because it depends on the size of the force and other factors like friction. A large enough force can accelerate a massive object quickly.
Explain why the statement “the bigger object pushes harder in a collision” is a misconception.
Both objects exert equal and opposite forces; the difference is in how their velocities change depending on mass.
A baseball player hits a ball. The bat exerts a force on the ball, and the ball exerts a force on the bat. How do these forces compare?
They are equal in size and opposite in direction (Newton’s 3rd Law).
The measure of how fast something is moving.
What is speed/Velocity