Basics
A push or a pull that can change the motion of an object
What is a force?
50 N right and 60 N left will result in.
10 N left
A wooden block has more inertia that a paperclip. Which of newton's laws does this apply best to?
What is his first law?
50 m/s
What are the units for speed
What is the unit for force?
Newtons (N)
What happens if there are no forces acting upon an object that is moving?
It will continue to move at the same speed in the same direction.
A force that resists movement, slows an object down, is exerted in the opposite direction of an object's motion.
What is friction?
A race car can go faster than a bicycle because the car can apply a greater force on the race track. Which law?
2nd law
Magnitude and Direction
What is the formula to calculate speed?
What is distance divided by time?
What would happen if you threw a ball in the air in outer space?
It will travel in a straight line forever
Are the forces balanced or unbalanced if an object is moving at a constant speed BUT is driving around a corner on a race track?
What are unbalanced forces?
Newton's First Law of Motion states that an objects...
motion will remain constant unless acted upon by an outside force.
Velocity is best described as..
Direction and Speed
What formula would you used to solve for force?
mass x acceleration
Why do people jerk forward when a driver pushes the brakes suddenly?
Objects in motion stay in motion unless acted on by an ouside force.
Two kids are rolling the same sized match box car into 2 wooden blocks. Both blocks speed up the same amount. Block A is heavier than Block B.
Explain which block experienced the greater force?
Block A experienced the greater force
Two hockey pucks are hit and experience the same change in speed. The heavier hockey puck experienced the greater force. Which of Newton's Laws explains this?
2nd
A change in a moving object's speed or direction is..
What is Acceleration?
(Vf-Vi)/t
Acceleration
Force of attraction between any two objects in the universe
What is gravity?
Which toy car had the greatest applied force?
1 : Mass (0.19) Acceleration (2.0)
2 : Mass (0.15) Acceleration (2.5)
3 : Mass (0.20) Acceleration (2.5)
4 : Mass (0.21) Acceleration (2.5)
What is toy car 4?
When the asteroid pod crashed into the space station, both experienced the same force? Which law explains this best?
Newton's 3rd law.
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?
Any distance divided by time squared. Ex. m/s/s