Vocabulary
Motion
Mix-it-Up
Force
100
What is the tendency of an object to resist change?
An example is when you slam on the brakes and your purse continues to go forward and falls on the ground
inertia
100
What happens to the acceleration of an object as its mass increases?
the acceleration decreases
100
Distance-______ graphs show the motion of an object
time
100
True or False: Balanced forces never change the motion of an object.
True
200
A push or pull is called a:
force
200
Which Graph shows only a constant velocity?
2
200
The same toy was rolled down the same ramp three times. Each time it traveled it started at a different point on the ramp. From which starting point was the toy moving the fastest at the finish line?
Point 1
200
What is the net force? Include direction
50 Newtons to the left
300
What are the SI units for force? (Hint: Who created the laws of motion?)
Newtons
300
Velocity includes the ____ and ______ of an object
speed, direction
300
Between what points is Chris stopped during the race?
D-E
300
If forces are acting in the same direction, should you add, subtract, multiply, or divide the forces to get your net force?
add
400
What is the force of gravity on a person or object on the surface of a planet called?
Weight
400
The change in velocity divided by time =
acceleration
400
What is the formula for calculating speed?
Speed = Distance/Time
400
If 2 equal forces are acting in opposite directions, what is the net force? Include units!
0 N
500
the force that one surface exerts on another when the two rub against each other is called ____
friction
500
If an object is experiencing at least 1 of these 3 changes in motion, it is accelerating:
List all 3
1. Speeding up
2. Slow down
3. changing direction
500
The amount of matter in an object is its ____.
mass
500
Which of these moons has the largest gravitational pull and why?
6, largest mass
600
According to Newton's 3rd Law, when a ball hits and exerts a force on the ground, the ground
exerts an equal force back on the ball.
600
Which of these graphs could represent a car driving at a constant rate of acceleration and then slamming on the breaks?
3
600
Which runner will place last in the race?
C
600
Which direction will the ball move? Is the ball balanced or unbalanced?
right, unbalanced
700
Which of these examples is an example of increasing friction. You may choose more than 1
a. putting salt on icy roads
b. putting oil on a pan
c. waxing a surf board
d. adding rocks to a driveway
A,D