SCIENCE 6 3RD QUARTER TEST

Simple machines are devices that help you do work with ease and comfort. How do simple machines make work easier?

• By making the work more complicated.

• By changing the direction of the work being done.

• By reducing the amount of work that needs to be done.

Your father bought two gallons of water five blocks away from your house. He told you to return the trolley he used in carrying the water. What is the function of a wheel and axle of the trolley?

• To move an object in a straight line.

• To change the direction of motion of an object.

• To increase the force needed to move an object.

oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT

• Light

• Heat

• Solar

• Sound

A pulley is a simple machine that consists of a wheel with a groove around its circumference and a rope that runs along a groove. Which of the following best describes the function of a pulley?

• To create linear motion.

• To store potential energy.

• To change the direction of the force.

Your mother wants to cook food for lunch using a gas stove. Which diagram shows the correct energy transformation for a gas stove?

• Chemical energy -> Heat energy -> Light energy

• Electrical energy -> Heat energy -> Chemical energy

• Heat energy -> Chemical energy -> Electrical energy

Your classmate wants to know about the different activities in using simple machines. Which activity is an example of using a wheel and axle to make work easier?

• Sharpening a pencil using pencil sharpener.

• Cutting a piece of wood with a saw.

• Lifting a heavy box with a forklift.

If your grandfather is a fisherman and would like to catch fish together with you, how can you help his sailboat increase its friction?

• Make the sail bigger.

• Make the sail smaller.

• There is no fluid friction.

• Make the sailboat bigger.

An inclined plane is a simple machine that consists of a sloping surface such as ramp and stairs. What is the primary function of an inclined plane?

• To hold an object in place

• To reduce the amount of force required to move an object.

• To increase the amount of force required to move an object.

One common use of a screw is to hold objects together, such as joining two pieces of wood. Which of the following is a characteristic of a screw?

• It has a flat surface.

• It has a sharp edge.

• It has a smooth, curved shape.

The FBES-main pupils saw a wind turbine in Rizal while having a fieldtrip. What is the correct order of energy transformation in a wind turbine?

• Electrical energy -> Kinetic energy -> Potential energy

• Potential energy -> Electrical energy -> Kinetic energy

• Kinetic energy -> Potential energy -> Electrical energy