PMA 2 Science Review

While at practice Allyson kicks a soccer ball across the field. What must the ball have in order to move?

• energy

• a motor

• a smooth surface

• a round shape

Tags

NGSS.MS-PS2-2

When you cook food in the kitchen, energy is used to change the food. The energy can come from an electric or gas stove. What kind of energy do stoves produce to cook food?

• chemical energy

• sound energy

• mechanical energy

• thermal energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

When a student plucks a stretched rubber and it makes a sound.  What could the student do to the rubber band to make it have a higher pitch?

• Stretch the band to the same length and pluck it with less energy

• Stretch the band to the same length and pluck it with more energy

• Stretch the band to a longer length and pluck it with the same amount of energy.

• Stretch the band to a shorter length and pluck it with the same amount of energy.

Tags

NGSS.MS-PS4-1

Nan is in her backyard.  She is playing with her new toy car. Nan’s toy car moves when the sun shines on a small panel. What is the source of energy that makes the car move?

• Heat energy from the sun.

• Light energy from the sun.

• Sound energy from the sun

• Chemical energy from the sun

Tags

NGSS.4-PS3-2

NGSS.4-PS3-4

A teacher is instructing a class about the concept of sound.  She wants to show the class that sound is produced by vibrations.  Which of these can best demonstrate that sound is produced by vibrations.

• The teacher is singing a high pitch sound

• The teacher has the students listen to both loud and soft music

• The teacher has the students observe her while she plays the trumpet

• The teacher has the students closely observe the strings of her guitar while she plays the instrument.

Tommy and the rest of his group are looking for examples of energy in their classroom. Which of these is an example of the energy of motion that Tommy and his classmates found?

• A pencil on the floor

• Paper on the teacher’s desk

• A magnet holding a picture on the board

• The hands of the clock on the wall moving

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Addison made a sand castle on the beach.  A few hours after making the sand castle a wave came in and swept it away. Where did the energy the moved the sand castle come from?

• The energy of moving air

• The energy of moving water

• Sound energy from the wave

• Thermal energy from the sun

Tags

NGSS.MS-PS3-5

Predict which material, if added to the circuit, will conduct the electricity and light the bulb.

• glass

• plastic

• lead

• copper

Brian and Emily are testing different paper airplane designs to see which will allow a plane to go the farthest. Emily folds her plane and attaches a paperclip to the front of it. After she throws the plane, it travels about fifty feet and then starts to fall to the ground. Why does the plane eventually fall to the ground?

• The force of air resistance stops acting on the plane.

• The plane was not designed to carry a load like the paperclip. 

• The force of gravity is greater than the forces keeping the plane in the air.

• The paperclip creates a magnetic force that attracts the plane to the ground.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Gravity gets weaker as you travel farther from the surface of Earth. Which of the following examples correctly illustrates this idea? 

• Satellites that orbit Earth will always fall back to Earth eventually.

•  Astronauts can float because Earth's gravity is not as strong in orbit.

• Airplanes can fly because there is much less gravity high in the sky. 

•  There is no gravity on the Moon because it is too far away from Earth.

Tags

NGSS.MS-PS2-4