What is a PUSH or PULL of an object?
Motion
Force
Friction
Gravity
Force
An objects resistance to a change in motion
Inertia
What pulls a ball back to earth?
Gas
Gravity
Friction
Molecules
Gravity
Friction is greater when the two surfaces are ________________.
rough
to not take part in work or activity
Rest
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.
Which word means a change in position?
Speed
Motion
Direction
Force
Motion
What is the speed of something in a given direction
Velocity
The force that acts directly against the direction of motion.
friction
Energy of an object in motion
Kinetic Energy
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.
Is kicking a soccer ball a push or a pull?
push
pull
push
When an object changes its path of motion, it changes _____________.
speed
force
direction
direction
If something is going on without a pass it is
Constant
What describes how fast an object is moving?
Speed
A push or pull?
What is Force?
Which of type of energy is created by friction?
heat
Stored energy in an object
Potential Energy
Which surface would be easier to roller-skate on?
The blacktop or the inside of the classroom.
The classroom because the floor will have less friction
The force that opposes the motion of an object?
friction
Is gravity a push or a pull?
push
pull
neither
both
pull
The "Law of Acceleration"
What is Newton's 2nd law?
A change in a moving object's speed or direction is...
acceleration
Objects in motion tend to stay in motion and objects at rest remain at rest unless......
Unless acted on by a force
What does Newton's 3rd Law state?
For every action, there is an equal and opposite reaction.
What is the unit used to measure Force?
Newton (N)
Using force to move an object a distance
Work
Combined forces that act upon an object is ?
Net force
What is the continuous action of moving?
motion
What does Newton's 1st Law state?
an object at rest will stay at rest and an object in motion will stay in motion