When two objects of different masses start falling from the same height at the same time and there is no friction the objects fall to Earth and hit the ground ________.
What is at the same time?
100
__________is the amount of force gravity exerts on an object's mass. For example, on the moon, people weigh one-sixth as much as on Earth, but their mass is the same.
What is weight?
100
A _____ would require more _____to push than a skateboard, car, or a bicycle.
What is bus and force?
100
A truck has more inertia than a bicycle because the truck has more ____.
What is mass?
100
A crumpled sheet of paper will fall to the ground faster than an uncrumpled sheet because crumpling the paper ________.
What is causes it to have less air resistance?
200
Sir Isaac Newton proposed three laws of motion. This law states: An object at rest remains at rest and an object in motion remains in motion in a straight line, unless acted upon by a force.
What is Newton's first law of motion?
200
_______the tendency for an object at rest to stay at rest. It is also the tendency for an object in motion to stay in motion.
What is inertia?
200
_________is a force that keeps moons in orbit around planets.
What is gravitation?
200
When a car is moving at a speed of 60 kilometers per hour and its speed increases to 70 kilometers per hour this means that the car ___________.
What is accelerated?
200
________attracts objects to Earth.
What is gravity?
300
How many laws of motion did Sir Isaac Newton propose?
What is three?
300
_______is the force that acts over a distance an attracts all objects to each other. Its strength depends on the amount of matter in the objects and the distance between them.
What is gravity?
300
A__________ball would take more force to throw than a _____ball.
What is heavy and light?
300
If a car runs into a wall and it stops it is because the wall _________.
What is exerts a force on the car?
300
_______________is how far it is between two points.
What is distance?
400
Newton's third law states: if an object exerts a force on a second object, the second object exerts an equal and opposite force on the first object - for every _____there is an opposite and equal ______.
What is action and reaction?
400
If the Earth's gravity did not act on the moon, the moon would_____________.
What is fly off into space in a straight line?
400
If a child throws two balls with equal force and one ball travels faster than the other ball this is because the faster one is ________.
What is lighter than the slower one?
400
If a pitcher throws a baseball toward a batter and the batter hits the ball and sends it flying toward first base the ________________ is what caused the ball to change direction.
What is the force of the batter?
400
If three balls of different weights are dropped from the same height they will hit the ground at _______________.
What is exactly the same time?
500
_______is the amount of material in an object.
What is mass?
500
If one person was pushing a heavy box and someone decides to help that would make the box move _____.
What is faster?
500
If a car is traveling 50 kilometers per hour and suddenly starts going faster this means that a ______caused the increased in speed.
What is force?
500
If an object is moving at a constant speed and the object changes direction and continues moving at the same speed the reason the object changed directions is because _____________.
What is a force acted on it?
500
A loading ramp is an example of a simple machine called an _______________________.