Balanced/Unbalanced
These types of forces result in no change in an object’s motion, even if forces are acting on it.
This property of an object measures the amount of matter it contains and affects how much force is needed to move it.
This scientist is famous for describing gravity after observing an apple fall from a tree.
Who is Isaac Newton.
This surface would have the least amount of friction: carpet, sandpaper, or ice.
What is ice.
A contact force that opposes motion.
When forces acting on an object are not equal, and produce a change in motion.
What are Unbalanced Forces.
According to Newton’s second law, if you increase the force applied to an object while keeping its mass the same, this happens to the object’s acceleration.
What is it increases?
This is why you weigh less on the Moon than on Earth.
What is the Moon has less mass, so it has weaker gravity?
The _________ the surface, the greater the friction.
What is rougher.
What is gravity.
Two students push a box in opposite directions with 30 N and 10 N. What is the total net force?
What is 20 N
If two objects have the same force applied, the one with this will accelerate more.
What is less mass?
This two factors determine the strength of gravitational force between objects.
What are mass and distance?
You might add this a squeaky door hinge to reduce friction.
What is lubricant.
What is Newtons.
Two students push a box across the floor each with 10 N. What is the total net force?
What is 20 N
If you have a 5 pound ball, 10 pound ball, 15 pound ball, which would require the most force to stop.
What is 15 pound ball.
This is what keeps planets in orbit around the Sun instead of flying off into space.
What is the Sun’s gravitational pull?
Why do people put winter tires on?
The total amount of force acting on an object.
What is net force.
If joe was pushing a box to the left with 50 N and Sally and Bo are each pushing in the opposite direction with 30 N, what is the total net force?
If a small car and a truck experience the same net force, this vehicle will have less acceleration.
What is truck because it has more mass.
This is what happens to gravitational force when the distance between two objects increases.
What is the gravitational force becomes weaker?
Friction converts kinetic energy into this type of energy, which you can often feel as warmth.
What is heat energy.
The amount of matter that makes up on object.