Show:
Measuring Motion
Force
Friction
Gravity
HMMMMMM
100
_____________________ is an object that appears to stay in place in relation to an object being observed. It is used to determine motion.
What is a reference point?
100
A _______________ is a push or a pull that is expressed in Newtons, can cause an object to speed up, slow down, or change direction.
What is a force?
100
_____________ is a force that opposes an object's motion.
What is friction?
100
True/False - The weight of an object can change with it's location in the universe.
What is True.
100
_______________ is any change in position over time.
What is motion?
200
Distance traveled divided by the time it took to travel that distance determines an object's __________________.
What is speed?
200
A ______________ us determined by combining forces.
What is net force?
200
____________ friction causes a sky diver's acceleration to change as she falls.
What is fluid friction?
200
The law of universal gravitation describes the relationship between force, _________________, and ____________.
What is distance and mass
200
A change in an object's direction always results in a change in its _________________.
What is velocity?
300
Knowing starting velocity, final velocity, and time it takes to change velocity is necessary to determine an object's __________________.
What is acceleration?
300
True/False - In an unbalanced force, the net force is not equal to zero.
True
300
A deck around a pool becomes slippery when wet due to _______________ friction.
What is fluid friction?
300
What 2 factors affect the gravitational force on a object?
What is distance and mass
300
_______________ is the rate at which velocity changes.
What is acceleration?
400
Acceleration is a change in _____________, ____________, and ______________.
What is speed, velocity, and direction.
400
In a balanced force the net force is equal to _________.
What is zero?
400
____________ frictions occurs when you apply brakes on a car or bicycle.
What is sliding friction.
400
Gravitational force _________________ as mass increases.
What is increases
400
Why is knowing a tornado's velocity important?
Because you need to know the direction the storm is traveling. That way you can prepare and not going in the direction of the storm.
500
What is the major difference between speed and velocity?
What is velocity includes direction, speed is just the rate of motion.
500
True/False - A balanced forces causes an object to be in motion.
What is False.
500
True/False - Making a surface rougher and pushing surfaces together with more force are 2 ways to increase friction.
What is True
500
How does distance between object affect the gravitational force?
What is as distance increases, gravitational force decreases. As distance decreases, gravitational force increases.
500
Which graph displays deceleration? (refer to white board)
What is Graph 1?