This is a PUSH or PULL on an object
What is a Force?
This type of friction slows objects down as they move through air.
What is Air Resistance?
This force pulls object to the center of Earth.
What is Gravity?
F= M x __________.
What is Acceleration?
*Double Jepoardy*
Draw an acceleration graph where the object does not change speed and does not start at the origin. (x and y axis must be labeled)
This will happen if these boys are each pulling with the force of 10 newtons & why. (double jeopardy)
They will not move because the forces are balanced.
This is a change in velocity.
What is Acceleration?
*Double Jeopardy*
This letter is where the object's speed is the fastest.
What is E?
60 km in 2/3 of a second
The force that acts directly against the direction of motion.
What is friction?
A football gets punted and travels 90 meters in 9 seconds, what is the football’s speed?
10 m/s
This is a measurement of speed in a given direction.
What is velocity?
*Double Jeopardy*
Avaiya is pushes a friend sitting on a sled down an icy hill. Her friend moves a distance of 100 ft on the sled and it takes her 10 seconds. This will be the average speed.
What is 10 ft/sec?
T or F? A bicyclist going at a constant speed traveling in a circular pattern accelerating.
What is TRUE! Because he is changing direction
(acceleration is any change in speed and/or direction)
This is the force that pulls objects to the center of the Earth.
What is Gravity?
A golf ball rolls down a hill on the golf course. Describes how friction affects the motion of the golf ball?
Friction decreases how far the ball rolls.
This is the formula for speed.
What is Speed = distance / time?
This graph represents what change in motion?
What is increasing acceleration?
What does this graph represent?
An object that is not in motion. 0 speed as time is increasing.
This is a non moving object that can be used to determine if another object is in motion.
What is a reference point?
*Double Jepoardy* Describe the difference between weight and mass.
Weight is a measure of gravity on a mass. Mass is the amount of matter in an object.
When the mass of an object increases, so does this property of matter, from Newton's first law.
What is inertia?
A car and semi (big truck) are travelling down the road at the same speed. They both slow down with the same stopping force. Why does the semi need more time to stop?
the semi has more mass
*Double Jeopardy*
Draw an average speed graph that illustrates an object traveling at a constant speed, stopping for a time and returning to the origin at a constant speed. (x and y axis must be labled)
*Daily Double*
Explain relative motion that includes a passenger on a moving airplane and a person standing on the ground.
Two perspectives
To the observer on the ground, the plane moves forward and to the observer in the plane, the person on the ground appears to be moving backwards.
*MOTION IS RELATIVE TO THE OBSERVER*
Children are applying force to roll a ball down a ramp and measuring how fast the ball rolls. If the children want the ball to roll faster down the ramp, how can they increase the force applied to the ball? (the children are pushing the ball)
They can increase the steepness of the ramp.
For every action_________________________. (Newton's 3rd Law)
What is "there is an equal and opposite reaction?
This is the net force represented in the picture below. (double jeopardy)
What is 400 N down?
This is a force exerted on an object by another object or person.
What is applied force?
Forces on an object that is moving at a constant speed (or at rest) need to be ____________.
Balanced
At what letter(s) is the object stopped?
B and D (slope = 0, so no distance is being traveled during a certain amount of time).