Why might a box be difficult to push across the floor?
The box has a lot of mass, which causes a lot of friction
As a rocket moves up into the sky, it is an action reaction. Which part is the reaction?
The rocket moving into the sky. or the rocket moving up.
What will most likely happen if you push harder while skating in a straight line? A. You will turn B. You will stop C. You will go slower D. You will go faster
You will go faster
Why does a flat paper and a crumpled paper fall at different rates here on earth?
Because of air resistance
Describe the motion of this object
Traveling at a constant speed, stopped, returned to starting point
You throw a baseball in space. What will occur and what law does this show?
It is the law of inertia or first law
A ford focus and an 18 wheeler truck are stopped at a light. Give them both a force of 18N, which will be harder to get moving? What law is this?
the truck - Newton's 2nd law or F=MA
What information is needed to calculate speed?
Distance and Time
_________ is a change in position over time
Motion
If a rocket takes off from Kennedy Space Center, which part of Newton's 3rd law is the rocket going into space?
reaction
A runner ran 100 meters in 20 seconds. What was their speed?
5 m/s
What is the best example of a pushing force that reduces the speed of an object? A. a bat hitting a baseball B. a brake rubbing against a wheel C. a pedal turning the wheels of a bicycle D. holding onto a dog leash
a brake rubbing against a wheel
Darryl pushed a toy car across a floor. It went fast on the wood but slow on the carpet. Why?
Friction increased
What two thing determine how big the gravitational force is between 2 objects?
Mass and Distance
Describe all 4 objects motion
A. Stopped
B. Traveling at a constant speed
C. Accelerating
D. Decelerating