Laws of motion
What is The first law of motion
An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force.
A car drives 120 miles in 3 hours. Calculate the average speed, in mph, of the car.
40 miles per hour
what is the equation for force?
will your gravity stay the same, increase, decrease?
you travel to idaho to a place with the same elevation as Utah.
stay the same
what are two types of energy
potential, kinetic
What is the third law of motion
Newton's third law simply states that for every action there is an equal and opposite reaction.
A pigeon flies for 7 hours at a speed of 70 km/h. Calculate how far the pigeon flies.
490 kilometers
What is a force?
A force is any action that changes or maintains the motion of an object.
What is gravity?
Gravity is the force of fundamental attraction between all things that have mass or energy.
finish the sentence
energy cannot be..
created nor destroyed
Inertia is related to which of the following laws of motion?
Newton's First Law
A helicopter flies 240 miles in 2 hours 30 minutes. Calculate the average speed, in mph, of the helicopter
96 mph
All forces occur in groups of ..... four, seven, two
Two
What would happen if we lost gravity for 5 seconds?
People, cars, water, and anything not firmly attached would begin flying upward because the ground would keep moving with Earth's rotation while objects were no longer held down.
how do we measure energy
joules
what is the second law of motion
the acceleration of an object depends upon two variables – the net force acting on the object and the mass of the object.
A dog runs 100 metres in 4.98 seconds. Estimate his average speed in kilometres per hour
72.29 km/h
What is the unit we use for force?
newton
finish the sentence
The force of gravity between two objects depends on the _____ of the two objects.
Masses
What is the equation for energy
E=mc to the power of 2
cars are following a 35 ton tractor-trailer truck traveling down the highway at a high rate of speed. One of the following vehicles is significantly heavier than the other. Wind coming off the back of the truck shakes them both. One of them does not sway as much as the other. Which one does not sway as much as the other?
Edith leaves her home at 11:50 am. She travels 75 miles at an average speed of 30 mph. At what time does she finish the journey
2.5 hours
katy is pushing a rock 2 times the amount of weight Anna has which way will the rock go?
The rock will go towards anna
will your gravity increase, decrease, stay the same
your orbiting in the international space station
decrease
What are five types of energy?
chemical, mechanical, nuclear, gravitatonal, thermal energy