What is the resistance to a change in motion called?
What is inertia
If something with a mass of 40 kg, is pushed with a force of 120N, what is the acceleration of the object?
3 m/s2
The Unit of force is this.
What is the Newton?
The unit of distance.
meters, centimeters, kilometers
What is the difference between speed and velocity?
direction
m/s2
How do you write the unit for acceleration?
The acceleration formula is ________velocity minus ________ velocity divided by time.
Final, initial
an object in motion stays in motion unless acted upon by an outside force, is an example of which law?
Newton's first law
Which law? F=mxa
Newton's 2nd law
Give an example of Newton's Third Law?
playing sports, throwing a ball when standing on a skateboard, hitting a wall, sitting in a chairs, walking on the ground,
lots of answers - action/reaction
One object pushing on another will always receive a push in return. True or false.
True
This property of matter increases with its mass.
What is inertia?
As the fuel burns in a rocket and gases push against the rocket, moving it upward this explains which of Newtons laws.
Newton's Third Law
If you put a notecard on a cup, and a penny on top of the notecard and flick the card so the penny falls in the cup, which force is acting on the penny so it falls down?
gravity
A train takes 5 seconds to travel 15 meters. What is the train's speed?
3 m/s
What causes a ball that has been kicked across the ground to stop?
Friction
Objects with more mass need a greater ________ to accelerate
force
how do you find speed?
What is distance divided by time
If someone is pushing a box with 15 Newtons and it accelerates at 5m/s2 , what would the mass of the box be?
3 kg or 3 g
If two rocks with different masses are rolling down a hill, will the bigger rock, or smaller rock take more force to stop?
the bigger rock
According to Newton’s Second Law, if the force increased but the mass remained the same, what happened?
The objects acceleration increased.
dribbling a basketball is an example of which law?
What is Newton's third law
A ball bounces away when another ball hits it. Which law does this demonstrate?
Newton's 3rd law.
The unit of mass.
What is kilogram?
Which scientist did experiments that involved air resistance because gravity wasn't discovered yet?
Galileo Galilei
If you drop two rocks with different masses from the top of a building at the exact same time. Which one will hit first?