Download Free Response and calculations

NewtoN’s Laws of MotioN Quiz
1.
Devices such as seat belts and air bags are used to protect passengers from which one of
Newton’s Law?
a. Law of Acceleration
c. Law of Inertia
b. Law of Action/Reaction
d. None of these
2.
Which of the following is not an acceleration:
a. slowing your bike ride so you can make it up hill
b. riding your bike straight down the street at a constant speed
c. riding your bike faster when you head down a hill
3.
Friction always acts _____________ the direction of motion of an object.
a. opposite to
b. in the same direction as
c. perpendicular to
4.
The two forces of a force pair are called the __________ force and the ____________
Force.
a. action, reaction
b. mass, acceleration
c. increasing, decreasing
5.
Which law describes what happens when a tablecloth is pulled out from under a setting of
china without damaging it?
6.
Which law describes what happens when two skaters push apart in a rink?
7.
What is the speed of an object in a particular direction? ___________________
8.
How is inertia used when riding a bicycle?
a. You must peddle harder when going uphill.
b. Bicycles do not use inertia
c. You can stop peddling and you will continue rolling forward.
9.
Which one of Newton’s Laws best fits with each statement?
When you push an object, it pushes back
a. Newton’s 2nd Law
Objects keep on doing what they are doing.
B. Newton’s 3rd Law
More mass means more force needed to accelerate.
10. ___________ measures the quantity of matter in an object.
a. mass
b. density
c. inertia
11. Which of the following terms correctly matches this definition: occurs when the net force of
the object does not equal zero.
a. acceleration
b. equilibrium
c. balanced force
12. A change in motion is described by _____________________.
a. inertia
b. speed
c. net force
d. acceleration
13. The correct definition for the term inertia?
a. an objects tendency to resist a change in motion
b. an unbalanced force that opposes motion between two surfaces
c. a change in the speed or direction of motion.
14. Forces that cancel each other are called _________________ forces.
a. inactivated
b. neutral
c. unbalanced
d. balanced
15. Acceleration depends on what two things?
a. mass and friction
b. force and friction
c. force and mass
d. none of these things
Free Response and calculations:
1.
What is the difference between average speed and instantaneous speed? Use a real-life
example to help you explain.
2.
Is it possible for an object to simultaneously have a speed of zero but an acceleration that is
not zero? Answer with an example.
3.
What is the acceleration of a car that is going at a steady speed of 60mph?
4.
Does a car accelerate when it goes around a corner at a steady speed? Explain.
5.
Does the speedometer of a car give you the average speed or the instantaneous speed of the
car? Explain.
6.
The slope of a speed vs. time graph is equal to _______________.
7.
A car rolling down a ramp starts with a speed of 50 cm/sec. The car keeps rolling and 0.5 sec
later the speed is 150 cm/sex. Calculate the acceleration of the car.
8.
Think about the relationship between the amount of gas you have in your car and how far
you can travel. Make a graph showing this relationship. Which is the dependent variable
and which is the independent variable?
9.
A turtle is moving in a straight line at a steady speed of 15 cm/sec for 3 hours. How far did
the turtle travel?
10. A bicyclist, traveling at 30 miles per hour, rides a total of 48 miles. How much time did it
take?