Transcript mg / force = mass x gravity

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CHOICE 1
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CHOICE 3
CHOICE 4
CHOICE 5
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Total distance/total time
What is the formula you
use to find average speed?
Row 1, Col 1
Centimeters
Which unit do
we use to measure distance?
1,2
The amount of distance and
the amount of time.
What sorts of variables
affect your average speed?
1,3
The change in position over
time.
Define motion.
1,4
Any large distance
Example: one country to
another
When do we use kilometers?
1,5
The rate of change of velocity
with time.
A car increasing speed to 60
m/h while turning to the left
Define acceleration.
Give an example of acceleration
2,1
m/s2
Which SI unit
do we use for acceleration?
2,2
It would have a zero slope
made from a horizontal line.
What would a graph on a
coordinate grid look like if we
wanted it to represent
no acceleration?
2,3
It must include distance,
speed, and direction
-Example -12 m/s2 North
What is acceleration vector?
Give an example.
2,4
Subtract the initial velocity
from the final velocity and then
divide by the change in time.
How do you find
average acceleration
of an object?
2,5
The movement in a circular
direction at a constant speed.
Example: an object moving in
a circle at 15 m/s
What is centripetal acceleration?
Give an example
3,1
A force exerted during contact
between objects is a contact
force./Friction is an example of contact
force between two surfaces
What is contact force?
Give an example of contact force.
3,2
The tendency of a moving
object to continue moving at
the same velocity unless an
unbalanced force acts on it.
What is inertia?
3,3
-This is when forces can act on
each other from a distance
An example is gravity or a magnet
What is an action-at-a-distance
force
and give an example.
3,4
Add them together if they are
moving the same direction and
subtract them if they are
moving in different directions.
How do you find net force?
3,5
-Balanced forces are exerted on a
single object whereas actionreaction forces are exerted on
different objects
What is the difference between
a balanced force
and
an action-reaction force?
4,1
If two objects have a large
mass and are close together.
How do you know if something
has a
strong gravitational force?
4,2
F = mg / force = mass x gravity
How do you find
gravitational force?
4,3
Orbit describes both the act of
an object circling in space
because the object’s
gravitational pull and the path
the orbiting object takes.
Define orbit.
4,4
Gravitational force depends on
both mass and distance
What does the gravitational
force depend on.
4,5
- the force that pulls all objects
toward one another
Define gravity.
5,1
- free fall has no other forces
causing it to accelerate
What is free fall?
5,2
Air resistance refers to a force
that acts against relative
motion of an object through a
liquid or gas.
Define air resistance
5,3`
-Air resistance causes a sky
diver to slow down.
Give an example of
air resistance.
5,4
•increase in mass does increase the
resulting gravitational force
*decrease in distances does increase the
gravitational force between the objects
.
*gravity does act across all distances
What do we know to be
true about gravitational force?
5,5