Force and Motion 1
What is a force?
A push or a pull
This is a measure of how fast something moves through a distance in a given amount of time.
What is speed?
50m/s What's the units?
m/s (meters/second)
This law explains why when you kick a soccer ball it goes flying and you feel the force on your foot in the opposite direction.
What is Newton's Third law of motion?
What is the unit for force?
Newtons (N)
What is Newton's First Law of Motion?
What is if an object is at rest it will stay at rest, if an object is in motion it will stay in motion, until acted upon by an outside force.
A force that resists movement
What is friction?
What formula would you used to solve for force?
mass x acceleration
What is Newton's Third Law of Motion?
the Law of Motion that states for every action there is an equal and opposite reaction....
What happens if there is no force acting upon an object?
It will continue to move at the same speed in the same direction.
What would happen if you threw a ball in the air in outer space?
It will travel in a straight line forever
Moving at a constant speed is an example of..
What is a balanced force?
Direction and Speed
Newton's First Law of Motion states that an objects...
motion will remain constant unless acted upon by an outside force.
A force applied to a wooden board is 10 N. If the force of friction resisting the student's push is 4N, what is the net force acting on the board?
What is 6 Newtons?
Why do people jerk forward when a driver pushes the brakes suddenly?
What is inertia?
50 N right and 60 N left will result in.
10 N left
A change in a moving object's speed or direction is..
What is Acceleration?
The mass of the cart in kilograms...
Force Acceleration
10 0.5
20 1.0
30 1.5
40 2.0
What is 20 kg?
This is the force that pulls things to the center of the earth.
What is gravity?
What is the formula to calculate speed?
What is distance divided by time?
Which toy car had the greatest applied force?
1 : Mass (0.19) Acceleration (2.0)
2 : Mass (0.15) Acceleration (3.0)
3 : Mass (0.25) Acceleration (1.5)
4 : Mass (0.21) Acceleration (2.5)
When an object wants to keep motion or sitting still...
What is Inertia
A combined force that causes something to move...
What is an Unbalanced Forces?
Has the greatest acceleration.
Sedan - Mass (1500) : Force (4500)
Coupe - Mass (1200) : Force (4500)
SUV - Mass (1800) : Force (4500)
Truck - Mass (2000) : Force (4500)
What is the Coupe due to it's small mass?