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Motion
Mechanical Engineering
Energy
Other
100
A ball sits on the ground, not moving. How would you describe its position? a. Back and forth b. At rest c. Up and down
What is b. At rest
100
Mechanical engineers: a. Predict the weather b. Improve machines c. Fix cars
What is b. Improve machines
100
Energy is the ability to make something move or change. What is an example of a change caused by kinetic energy? a. Sunlight brightens a dark room b. Hot water melts ice cubes c. The moving air pushes the sailboat
What is c. The moving air pushes the sailboat
100
Identify the surface that would be easier to push a heavy box across and why. a. icy driveway, because there is more friction b. icy driveway, because there is less friction c. cement sidewalk, because there is less friction
What is b. icy driveway, because there is less friction
200
A ball is kicked, so it rolls from the tree to the house. Describe the motion of the ball. a. The ball moves round-and-round and in a straight line. b. The ball only moves round-and-round. c. The ball is only moving in a straight line.
What is c. The ball is only moving in a straight line.
200
The best sail for the sailboats that we tested should be: a. Big to catch the wind, but not too heavy b. Small so that they are not too heavy c. Big and heavy to catch the most wind
What is a. Big to catch the wind, but not too heavy
200
Which on of these is NOT something that stores energy? a. A rubber band b. A battery c. Gasoline
What is c. Gasoline
200
What is the most correct statement about technology? a. Technologies use electricity b. Live animals and people can be technologies c. Technologies help people solve problems
What is c. Technologies help people solve problems
300
What caused the ball to go from rest to motion? a. A force called gravity b. A force called friction c. A force caused by the child's foot
What is c. A force caused by the child's foot
300
What were the input and useful output energies of the windmills that you designed? a. Input- Heat... Output- Kinetic b. Input- Electrical... Output- Heat c. Input- Kinetic... Output- Kinetic
What is c. Input- Kinetic... Output- Kinetic
300
Which of these devices transforms electrical energy into useful light energy? a. A light bulb b. A pinwheel c. An electric fan
What is a. A light bulb
300
What force changes the sailboats that you made from rest to motion? a. The fan b. The electricity coming into the fan c. The air that is moved by the fan
What is c. The air that is moved by the fan
400
If a ball is at rest. This means: a. The ball is not moving b. The ball is rolling c. The ball is bouncing
What is a. The ball is not moving
400
What is the input and output motion of a glue stick when a teacher wants more glue to come out of the glue? a. Input- straight line... Output- round and round b. Input- round and round... Output- straight line c. Input- round and round... Output- round and round
What is c. Input- round and round... Output- round and round
400
We can feel the back-and-forth vibrations of sound. What kind of energy does sound have? a. Heat b. Kinetic c. Light
What is b. Kinetic
400
Why will a moving paper clip come to rest sooner on sandpaper than on wax paper? a. The sandpaper creates more friction than the wax paper b. Gravity c. The sandpaper creates less friction than the wax paper
What is a. The sandpaper creates more friction than the wax paper
500
What were the input and output motions of the windmills we designed? a. Input- round and round... Output- round and round b. Input- straight line... Output- straight line c. Input- straight line... Output- round and round
What is a. Input- round and round... Output- round and round
500
What are the 5 steps to the engineering design process? a. Ask, imagine, plan, create, and improve b. Predict, plan, create, imagine, and improve c. Introduction, rising action, climax, falling action, and resolution
What is a. Ask, imagine, plan, create, and improve
500
Things like computers, light bulbs, and fans become warm when they are used, even if it is not their job to create warmth. What kind of output energy do these things have? a. Heat b. Kinetic c. Electric
What is a. Heat
500
What is the best way to describe the motion of the model sailboats that you tested? a. Zig zag b. Straight line c. At rest
What is b. Straight line