WorksheetsWritten 1&2
Total questions: 20
Worksheet time: 41mins
The Greek prefix kilo means _____, so if an object is said to have a mass of 20 kg, then it is equivalent to _____.
1/1000th ; 20/1000th grams
1000; 20 x 1000 grams
100 ; 20 x 100grams
1/100th ; 20/100th grams
Rank the following quantities in terms of their size—largest to smallest:
A .60 liter B. 0.6 kiloliter C. 600 centiliter
A C B
B C A
B A C
C A B
______ is the unit of mass in the _______ system.
g; metric
lb; English
N; metric
Kg ; metric
Which is the best estimate for the height of an adult?
0.160 m
16 mm
160 cm
160 m
Olympus Mons, in the Tharsis region of Mars, is the highest known mountain in the Solar System, rising about 25000 m above the surrounding plain. This is about how many kilometers?
Sputnik 1 was the world's first artificial satellite. It was launched into space on October 4, 1957, by the Soviet Union (now Russia). It was a small satellite measuring only 0.58 meters across. This is how many centimeters?
The swing-wing F-14 Tomcat is a US Navy fighter aircraft. It is similar to the US Air Force's F-15 Eagle but is designed for aircraft carrier landings. It has a top speed of over 2,400 km/h. What is its top speed in m/s?
Change 5 days to seconds
The speed of light is 300,000,000 m/s. This may be expressed in scientific notation form
What is the proper means of reporting the length of the magnesium strip?
24.85 cm
24.5cm
24.8 cm
25 cm
What is the proper means of reporting the measurement of the volume of water?
23 mL
23.2 mL
23.0 mL
23.20 mL
Students investigated how the height of a ramp affected the motion of a toy car. They noticed that as the ramp became steeper, the car reached the bottom more quickly and seemed to accelerate faster.
Which of the following is the best scientific question for this investigation?
A. What color of toy car is the fastest?
B. How does the height of a ramp affect the acceleration of a toy car?
C. Do toy cars roll faster than bicycles?
D. How long does it take a car to roll down a ramp?
Explain why your answer is a testable scientific question while the others are not.
Students investigated how the height of a ramp affected the motion of a toy car. They noticed that as the ramp became steeper, the car reached the bottom more quickly and seemed to accelerate faster.
Which hypothesis best fits this investigation?
A. If the ramp is higher, then the toy car will accelerate faster because gravity has a greater effect along the ramp.
B. If the ramp is higher, then the toy car will move slower because it is harder to climb.
C. If the ramp is higher, then the car will change color.
D. If the ramp is higher, then the car will stop before reaching the bottom.
Explain the scientific reasoning behind your choice using ideas about forces, motion, and acceleration.
Students investigated how the height of a ramp affected the motion of a toy car. They noticed that as the ramp became steeper, the car reached the bottom more quickly and seemed to accelerate faster.
Which correctly identifies the independent and dependent variables?
A. Independent: toy car color; Dependent: ramp height
B. Independent: ramp height; Dependent: car’s acceleration
C. Independent: car’s acceleration; Dependent: ramp height
D. Independent: stopwatch used; Dependent: time taken
Explain why your answer is the independent variable and why your answer should be measured as the dependent variable.
Students investigated how the height of a ramp affected the motion of a toy car. They noticed that as the ramp became steeper, the car reached the bottom more quickly and seemed to accelerate faster.
Which method would give the most reliable results?
A. Roll the car once from a tall ramp and record the time.
B. Roll the car three times from ramps of different heights and average the results.
C. Use different cars each time to compare results.
D. Push the car with different strengths on each trial.
Explain why your answer makes an investigation more reliable.
Students tested how ramp height affected the acceleration of a toy car. They
released the car from three different ramp heights and measured its average acceleration (m/s²).
ramp height (cm) acceleration (cm/s2)
10 , .8
20 , 1.6
30 , 2.3
Based on the graph from the previous item, what trend is shown in the data?
Use this pattern: (As ____________ (increases/decreases), ____________ (increases/decreases) because ___________________________________.)
The hypothesis stated: “If the ramp is higher, then the car will accelerate faster.” Based on the data, is the hypothesis supported? Explain your reasoning.
Explain how using simple tools such as a ruler and a stopwatch can affect the accuracy of distance and time measurements.
Students investigated how the angle of a ramp affected the motion of a toy car. They noticed that as the ramp became steeper, the car reached the bottom more quickly and seemed to accelerate faster.
Suggest one improvement to make the experiment more reliable.
