Friction
A force between an object and the surface it is moving on
The push or pull on an object
Force
The moment when two objects hit each other
Collision
The amount of matter that makes up an object
Mass
To apply a force
Exert
You roll a ball on a carpet and it can't roll all the way across the carpet because there is a force acting against it. Is there friction?
Yes.
When an object is unmoving, you can use force to make it start moving. True or False?
True
When you crash into a table, there is more force exerted on you than the table. Is this statement true or false?
False, because in a collision, both objects have the same force exerted on them. It depends on which one is stronger that decides the damage.
Something moves slower than another object but has the same force exerted on it
A force in the opposite direction of an object's initial direction can cause a change in velocity which can lead to the object slowing down or going in the ________ _________. What are the words that should fill the blanks?
opposite, direction
A plane is flying in the air and it is going really fast as if it doesn't face any resistance. Is there friction?
Yes, there is air resistance.
When you are pull a rubber band back, you are putting in potential energy and when release it, it uses that energy built up. Is this force?
Yes.
When one object is non-moving and a fast moving object slams into it, the non-moving object could move in the direction of the fast object and the fast object will _______. What is the word in the blank?
rebound
Something with less mass will move more with the same force than a heavier object. Is this statement true or false?
True.
If pushing a ball on a table caused another ball to move, then you can come to a conclusion that the first ball was pushed into the second ball. What single word can you use to replace the phrase "come to a conclusion" with?
Infer
A toy car goes across hardwood floor and goes farther than the same toy car that goes on carpet. Is there friction on the hardwood?
Yes, because the wood has some level of roughness.
Whenever you touch anything, you are applying some force to it. If it heavy, it will not move, but if it is light, you might be able to even throw it. If you can throw an object, can you push it?
Yes, because if you can throw it it is light enough and if it light enough it can be pushed.
If two objects of equal crash into each other with equal force, the two objects will be sent in the opposite directions they came from with equal force. Is this statement true or false?
True, because no objects win and keep going so they go in the opposite direction with equal force.
True, because the heavier object has more mass barreling forward so it will take more time to stop.
If an object is pushed left, it is harder than pushing the object up because sometimes direction of force matters. True or False?
False, because gravity exists and gravity brings things down.
A spacecraft is flying in space towards Mars from Earth and it isn't in any orbit of any object. Is there friction?
No, unless there is another object.
To move an object you need force. Can you move a ball with a vibration such as pounding a table?
Yes, because the vibration is a very slight push force on the object.
Two objects with equal mass hit each other. Object A moves at 15cm/s left, while Object B moves at 20 cm/s right. Which object will overtake the other's force?
Object B will because it has the same mass and moves faster.
If you try to ram a massive refrigerator, it won't move, but if you ram a chair, it will move. If you push with the same velocity, the chair will move more than the refrigerator. Why?
The chair will move because it has less mass and less friction and the refrigerator has more mass and friction.
What is the difference between speed and velocity??
The difference between speed and velocity is speed is how fast something is moving and velocity is speed in a particular direction.