The approximate mass of a high school student is
a) 1.0 kg. b) 5.0 kg.
c) 65 kg. d) 250 kg.
C. 65 kg
100
This SI unit is defined as 1 Newton X 1 meter per second.
Watt! 1 Joule = 1 Newton x 1 meter ; 1 watt = 1 joule / 1 second
100
An automobile drips oil at a constant
rate on the road while being driven. What will the pattern of the oil drip look like, if the car is traveling with constant velocity?
The oil drips will be equally spread apart
100
As the kinetic energy of the molecules in a substance increases, the
What is temperature of substance increases
100
A rocket in space can travel without engine power at constant speed in the same
direction. This condition is best explained by the concept of
a) gravity. b) inertia.
c) acceleration. d) frames of reference.
b) inertia
200
This is one way to interpret data after an experiment
Make a graph (Any other appropriate methods are accepted)
200
Definition of Work-Energy Theorem
Change in KE = W (Net)
200
On a distance-time graph, what will the graph look like when there is no movement?
There should be a straight, horizontal line to show no movement.
200
If a cup of coffee is 80 degrees Celsius and an ice cube is added, how does heat flow?
From the coffee to the ice
200
A coin is resting on a piece of cardboard on a beaker.
When the cardboard is rapidly removed, the coin falls into the beaker. The two properties of the coin that best explain its fall are its weight and its
a) temperature. b) inertia.
c) volume. d) shape.
b) inertia
300
Definition of 1 Newton
1 kg *m / s^2
300
Tyrese is trying to move a large rock. He applies a force of 75 Newtons but is still unable to budge the rock. This is how much work has Tyrese done.
No work (0 Joules)
300
On a distance-time graph, there are two different lines plotted. Line 1 shows a steep slope, (almost vertical,) and line 2 shows a very gradual slope, (almost horizontal.) Which line represents an object traveling at a faster speed?
Line 1
300
what is the specific heat of substance that requries 99,100 J of thermal energy to heat 3470 g of this substance from 11C to 45C
What is .839
300
Which person has the greatest inertia?
a) A 110-kg wrestler resting on a mat b) A 90-kg man walking at 2 m/s
c) A 70-kg long-distance runner traveling d) A 50-kg girl sprinting at 9 m/s
at 5 m/s
a) A 110-kg wrestler resting on a mat
400
List the steps of the Scientific Method in order
1. Make observations
2. Ask a question
3. Form a hypothesis
4. Design an experiment
5. Collect Data
6. Analyze Results
7. Draw Conclusions
8. Communicate Results
6.
400
The motor of a Ferrari is more powerful than that of a smart car. Which of the following must be true of the Farrari's motor: a. it can do work more quickly b. it can operate for a longer time c. it can store more potential energy
a. It can do work more quickly
400
A baseball pitcher throws a fastball at 42 m/s. If the batter is 18 m from the pitcher,
approximately how much time does it take for the ball to reach the batter?
0.43 s
400
Define: 1st law of thermodynamics
Transferred heat = (Change in Internal Energy) + (Work)
400
If there is no net force acting on an object, the object will
a) slow down and stop. b) change its direction of motion.
c) accelerate. d) continue with constant speed in a
straight line.
d) continue with constant speed in a
straight line.
500
Explain the difference between Accuracy and Precision
Accuracy is the state of being correct, while Precision is the state of being exact.
500
This is the power required to carry a 35 N package a vertical distance of 18 m if the work on the package is accomplished in 30 s.
21 Watts
500
An automobile travels between the 100-m and 250-m markers on a highway in 10 s.
The average speed of the automobile during this interval is
15 m/s
500
__________ lost= ___________ gained because energy is conserved
Heat / Heat
500
If the mass of a moving object is doubled, its inertia would be