The fact that a ball hits the back of a wagon if the wagon is jerked forward quickly is a result of this property of the ball.
What is the ball's inertia?
100
This is the size of the gravitational force acting on a girl with a mass of 40 kilogram when the girl is at or near the surface of the earth.
What is 400 Newtons?
100
This is the force exerted on my PT Cruiser by a grasshopper when the PT Cruiser hits the grasshopper with a force of 200 Newtons in the forward direction.
What is 200 Newtons backwards?
100
This is the net force acting on an object which is pulled to the north with a force of 20 Newtons while it is pulled to the south with a force of 25 Newtons.
What is 5 Newtons to the south.
100
This is the SI unit for mass.
What is the kilogram?
200
This is the net force necessary to keep a hockey puck moving along the surface of a frozen pond at a constant speed.
What is zero?
200
This is what happens to the acceleration of an object if its mass remains unchanged while the net force acting on it is cut in half.
What is cut in half?
200
This is what pushes your car forward when you drive.
What is the road?
200
This is the net force acting on a car when 2 people each push forward on the car with a force of 30 Newtons.
What is 60 Newtons forward?
200
This is what we use to measure inertia.
What is mass?
300
If the net force acting on an object is zero, this is also zero.
What is the object's acceleration?
300
This is the direction of acceleration of a parachutist if the gravitational force acting on him is 150 Newtons, and the wind resistance acting on him is 200 Newtons.
What is upward?
300
This is what forces you up when you climb a ladder.
What is the rungs of the ladder?
300
This is the net force acting on a belt when Jericho pulls to the left with a force of 20 Newtons, Nina pulls to the right with a force of 20 Newtons, and their dad pulls north with a force of 30 Newtons.
What is 30 Newtons to the north?
300
This is the object below with the greater mass:
a feather pillow
a car battery.
What is a car battery?
400
This is the distance an object moving at 2 m/s will travel if zero net force is acting on it at all times.
What is forever?
400
This is what happens to the magnitude of the net force acting on an object as the object speeds up while it is falling through the air.
What is decreases?
400
This is what pushes the balloon rocket forward.
What is the air being expelled by the balloon?
400
This is the net force acting on an object when it is at rest.
What is zero?
400
This is what happens to an object's mass when that object is moved from the surface of the earth to the surface of the moon.
What is nothing?
500
This is the net force acting on an object in mechanical equilibrium.
What is zero?
500
This is the acceleration of an 6 kilogram object when a force of 2 Newtons is pushing it to the left while a force of 5 Newtons is pulling it to the right.
What is .5 m/s/s to the right?
500
This is the amount of force YOU exert on the EARTH if you weigh 750 Newtons.
What is 750 Newtons?
500
This is the net force acting on a ball when Jael pulls on it to the west with a force of 4 Newtons, and Jayce pulls on it to the north with a force of 3 Newtons.
What is 5 Newtons north west?
500
This is your weight at or near the surface of the earth if you have a mass of 70 kilograms.