Pretest Directions: Read the questions carefully. Write the letter of the correct answer on
the
answer sheet provided.
1. Which of the following is a unit for measuring time?
A. centimeter
B. kilometer
C. minute
D. meter
2. What do you call the amount
space between two objects?
ng
A. interval
B. distance
C. length
D. gap
3. What is the distance traveled by an object over a period of time?
A. time
B. motion
C. distance
D. speed
re
4. How will you describe motion?
A. a change in position
C. the passing of time
B. the change in direction
D. a reference point
5. Which of the following shows a correct measurement of speed?
A. 60 km/h
B. 60 h/km
C. 60 h/h
D. 60 km/km​

1.minute

2.distance

3.speed

4.change in position

5.60km/h

1 : c

2: b

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invention of the washing machine

in the past, people used sticks and stones or scrub boards to clean their clothing. as it was sweaty, backbreaking work, we owe a world of to james king because he created the model for the modern washing machine in 1851. the most important issue was that this machine cleaned clothes while a person cranked the handle. doing this made people who used it develop strong muscles in their arms. later, in 1908, alva j. fisher created an electric washing machine named thor. this one was not the first automatic washing machine. however, it was one of the most popular models at the time.