Force and Motion
Friction
Gravity
Newton's Laws
Force and Motion 2
100
What is a PUSH or PULL of an object?
Force
100
Which type of friction involves one object having a curved or rounded surface?
Rolling Friction
100
What type of force pulls objects toward the center of the Earth?
Gravitational Force
100
Objects in motion will stay in motion unless acted on by another force. Which law?
Newton's 1st Law
100
Air resistance is a type of what friction?
Fluid Friction
200
If these boys are pulling with the same amount of force. What will happen?
The boy in blue will win.
They will not move at all.
The boy in red will win.
Both will fall down.
They will not move at all.
200
Which type of friction involves the friction hold an object in place?
Static Friction
200
Gravity DOES not affect?
The mass of an object.
200
The more mass an object has the more force needed to accelerate the object. Which law?
Newton's 2nd Law
200
The strength of an object when it is motion is called...
Momentum
300
Which of the following statements are true?
Balanced forces cause a change in motion.
Unbalanced forces cause a change in motion.
Forces do not effect the change in motion.
Unbalanced forces cause a change in motion.
300
Which type of friction involves two objects having flat surfaces and rubbing together?
Sliding Friction
300
Gravity DOES affect...
Weight
300
Objects at rest stay at rest unless acted on by another force. Which law?
Newton's 1st Law
300
The amount of distance an object goes in a certain amount of time.
Speed
400
When one force is stronger than another it creates what type of force?
Unbalanced Force
400
Which of type of energy is created by friction?
Heat
400
The moon has less gravitational force than the Earth. Therefore, will you weigh MORE on the Earth or the moon?
Earth
400
When a rocket ship is taking off, gases push down against the ground and in so doing this propels rocket into the sky. This is an example of which law?
Newton's 3rd Law
400
What does the Distance-Time graph show?
An object has no motion.
500
Is gravity a push or a pull?
pull
500
Which type of friction involves objects moving against gases or liquids?
Fluid Friction
500
What type of gravitational force holds water in a bucket when the bucket is moved quickly through the air in a circular motion?
Centripetal force
500
Another name for Newton's 1st Law is...
The Law of Inertia
500
The more mass an object has, the greater...
the force needed to accelerate that object