Tech 1 Terminology, Tools, And Safety

When working with fractions on a tape measure, it is important to reduce the fractions to their simplest form. This makes it easier to read and interpret the measurements. In the given options, the fractions 6/8 and 4/8 have not been reduced. To reduce these fractions, we can divide both the numerator and denominator by their greatest common divisor, which is 2 in this case. Therefore, 6/8 can be reduced to 3/4 and 4/8 can be reduced to 1/2.

The tool represented by the picture is a block planer. A block planer is a woodworking tool used to shape and smooth wood surfaces. It has a flat base and a cutting blade that can be adjusted to remove thin layers of wood. This tool is commonly used for leveling and shaping wooden blocks or boards. It is not a wood rasp, sander, or steel ruler, as they have different functions and designs.

Friction causes a mousetrap car to stop moving forward. When the car is in motion, the wheels rub against the surface it is moving on, creating friction. This friction opposes the forward motion of the car, eventually bringing it to a stop. The more friction there is between the wheels and the surface, the faster the car will come to a stop. Therefore, friction plays a crucial role in determining the movement and stopping of a mousetrap car.

When you wind the string around the axle, it creates tension in the spring, causing it to compress. This compression of the spring stores potential energy. Potential energy is the energy that an object possesses due to its position or condition. In this case, the potential energy is stored in the spring and can be released to provide forward propulsion to the mousetrap car when the string is released and the spring decompresses.

CAD stands for computer aided design. It refers to the use of computer software and systems to create, modify, analyze, and optimize designs. Google SketchUp is a CAD software program that allows users to create 3D models and designs.

The answer is correct because it includes all the necessary safety precautions that should be followed when working with hand tools. Wearing eye protection is important to protect the eyes from flying debris or particles. Wearing closed-toed shoes helps to prevent injuries from falling tools or objects. Unplugging power tools before changing bits or blades is crucial to avoid accidental starts or injuries. Following these precautions helps to ensure the safety of the person working with hand tools.