Activity 4-Directions: Read and analyze each statement below. Write True if the statement is correct; False if the statement is incorrect on the
space provided for.
1. The best way to use the stone is to find a way to stabilize the tool that you
want to work on.
2. Tools that are worn out should be separated and be fixed immediately to
Avoid accident.
3. When sharpening, try to maintain the original factory bevel or angle.
4. Always push the file across the blade in a motion away from your body.
5. Clean accumulated rust and dirt off all metal surfaces with a wire brush.
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Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

Suppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?