how far an object moves in a certain amount of time
speed
100
horizontal line represents...
object at rest
100
formula for speed
distance / time
100
State Newton's Three Laws.
1: An object in motion stays in motion; an object at rest stays at rest, unless acted on by an unbalanced force.
2: F = m x a
3. Every action has equal and opposite reaction.
100
a butterfly flying through the air
random
200
how far an object moves in a certain amount of time and in a given direction
velocity
200
Why is there never a vertical line in a motion graph?
can't be in 2 places at the same time
200
possible unit of speed
cm/sec, feet/min, etc.
200
Which of Newton's Laws does inertia apply to?
First
200
a slithering snake
curvilinear
300
tendency to stay in motion
inertia
300
How long was the object at rest?
1 second
300
What is the speed of a snail that moves 2 cm in 10 min?
0.2 cm/min
300
In a game of tug of war, one team pulls with a greater force and wins. Are the forces balanced or unbalanced?
unbalanced
300
a basketball spinning on a finger
rotational
400
stationary background to show something else is in motion
frame of reference
400
What is the speed from C-D?
10 m/s
400
What is the velocity of a plane that flies 5000 km west in 5 hours?
1000 km/hour West
400
What is the reaction force when a baseball hits a ball?
The ball hits the bat.
400
a swing moving back and forth
oscillatory
500
change in speed
acceleration
500
What is the speed from D-E?
40 m/s
500
Why does a ball move faster on ice than grass?
less friction
500
What is the acceleration of a 2 kg object that moves with 100 N of force?