True or False. A bike on grass is a form of friction?
What is true?
100
True or False: Gravity is a force that holds us on the Earth.
What is True
100
If you say,"A bird is going 30mi/hr west." you are stating its _______.
What is Velocity?
100
An object in motion will stay in motion, unless:
What is: it is acted upon by an outside force?
100
True or False: An unbalanced force doesn't affect motion.
What is False
200
Which is a form of decreasing friction intentionaly?
A. Putting snow tires on a car when the road is icy.
B.Oil on a a squeaky door hinge.
C.Wearing cleats in field sports.
D.None of the above.
What is B.Oil on a squeaky door hinge?
200
What is the measurement of the force of gravity on an object?
A. Height
B. Weight
C. Friction
D. Acceleration
What is weight
200
True or False: Velocity is the time it takes for a change to happen?
What is False?
200
A rocket taking off is an example of which of Newton's laws?
A.1st
B.2nd
C.3rd
D.4th
What is 3rd?
200
A push or pull on an object is also known as a ________.
What is force?
300
What is the definition of friction?
Be close to the answer for credit.
What is When two surfaces rub together and prevent or slow motion.
300
What is the force that acts between any two masses and pulls them together?
A. Weak Force
B. Unbalanced force
C. Strong Force
D. Gravitational force
What is Gravitational force
300
True or False: acceleration is speed times inertia.
What is False?
300
Which of Newton's laws states: That an object at rest will stay at rest and an object in motion will stay in motion at a constant velocity, unless acted upon by an unbalanced force.
A.1st
B.2nd
C.3rd
D.4th
What is 1st?
300
Which of the following is NOT an example of a force:\
A: speed
B: friction
C: gravity
D: air resistance
What is A?
400
True or False. Using snow tires on an icy road is an example of increasing friction.
What is True
400
True or False: On Earth, a bowling ball will fall faster than a tennis ball.
What is False
400
Inertia is:
A.When you have a stomach cramp
B.When an object resists a change in motion
C.When an object accelerates
D.When a force pulls two objects together
What is B?
400
Which of Newton's Laws states: That for every action there is an equal and opposite reaction.
A.1st
B.3rd
C.2nd
D.4th
What is 3rd
400
Forces that cancel each other out are also known as:
What is balanced forces?
500
Which one of these two are true?
A. Air resistance is not a type of friction.
B. There is no air resistance in a vacuum.
What is B.
500
On Earth, the force of gravity is a downward ________ on an object.
What is pull?
500
True or False: Friction decreases speed.
What is True?
500
Force equals mass times acceleration is an expression of Newton's ______ Law of motion.
What is Second?
500
If a truck with a mass of 1,000kg is traveling at a rate of 10m/s/s, with what force will the truck hit a parked car it cannot avoid?