Vocabulary
Motion
Mix-it-Up
Force
Newton's Laws
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 floor.
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
100
Which of Newton's Laws states that for every action, there is an equal an opposite reaction?
Newton's Third Law of Motion
200
A push or pull is called a:
force
200
Which Graph shows only a constant velocity?
2
200
A beach ball is rolling in a straight line toward you at a speed of 0.5 m/s. Its momentum is 0.25 kg m/sec. What is the mass of the beach ball?
0.5kg
200
What is the net force? Include direction
50 Newtons to the left
200
Which of Newton's Laws states that an object will remain at rest or in uniform motion unless acted on by an external (outside) force?
Newton's First Law of Motion
300
What are the SI units for force?
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
300
What is the formula associated with Newton's Second Law of Motion?
a=F/m
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
400
Which law explains why a student gets thrown forward into the seat when a school bus stops suddenly?
Newton's First Law of Motion
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
500
A skateboarder is sent into the air after his skateboard is stopped by a rock. Which of Newton's laws of motion best explains what happened?
Newton's 1st law
600
a principle stating that the total momentum of a group of objects stays the same unless outside forces act on the objects
law of conservation of momentum
600
Which of these graphs could represent a car driving at a constant speed 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
600
When a Eddie tried jumping off of a kayak, the kayak went backwards and Eddie fell into the water. Which of Newton's laws best explains what happened?
Newton's 3rd Law
700
a force that one object applies to another object with touching it
contact force
700
A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average acceleration?
6 m/s2
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
700
The mass of a large car is 1000 kg. How much force would be required to accelerate the car at a rate of 3 m/sec2?
3000N
700
What is the formula associated with Newton's third Law of Motion?
p = m x v