TEK 5.7 Test

Al thinks different-sized balloons make different forces as they let out air. How can he BEST plan an experiment to test this variable?

• Let the air out of different-sized balloons to see which empties faster.

• Propel the same toy car over the same surface with the air from same-sized balloons.

• Propel the same toy car over the same surface with the air from different-sized balloons.

• Propel different-sized toy cars over the same surface with the air from different-sized balloons.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

This image shows a tug-of-war between three fifth-grade students and their teacher.

How can the energy and forces in this picture BEST be explained?

• The forces are unbalanced. The teacher has more force than the students, causing a transfer of energy and the motion of the teacher.

• The forces are unbalanced. The students have more force than the teacher, causing a transfer of energy and the motion of the teacher.

• The forces are balanced. Energy is transferred from the teacher to the students, causing the motion of the students and the teacher.

• The forces are balanced. Balanced forces cause the motion and energy of the teacher to be the same as the motion and energy of the students.

Tags

NGSS.3-PS2-1

Ali is planning an investigation using balls. He wants to answer this question.

• “How does the same force affect different masses?”

How can Ali BEST complete his experiment? Write the letter of ONE correct answer on each line. Not all answers will be used. Each answer may be used more than once.

Ali should use three balls that have ____________. He should push each ball with ____________. Then, Ali should ____________ the distance that each ball travels. This will show how ____________ affects objects with different amounts of mass.

• E, D, B, D

• A, D, E, D

• B, D, F, D

• F, D, B, D

Tags

NGSS.MS-PS2-2

Akiko and Seth are investigating how forces can cause changes in motion. Akiko applies force to one side of the box and Seth applies force to the other. They construct an input and output table. They make drawings to show the forces input during the three trials of their experiment. Then they analyze the data to identify patterns.

Each arrow represents one of the students pushing. The longer the arrow, the more force was applied. How can their input and output table AND conclusion be completed? Write the letter of ONE correct answer in each box and on each line. Each answer may be used more than once. Not all answers will be used.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Leah makes the following experimental setup. Mass A and Mass B are stacks of individual, smaller masses. To start, Mass A and Mass B are equal. This means the masses pull equally on the cart with balanced forces and the cart does not move.

Leah removes individual masses from Mass B one at a time and observes what happens to the cart. Which questions could be answered by Leah’s investigation? Circle TWO correct answers.

• How does the same force affect different carts?

• How does changing the surface affect the motion of the cart?

• How does changing the size of the cart affect the motion of the cart?

• How does changing the force on the cart affect the motion of the cart?

• What will happen to the cart if the forces on the cart are balanced and unbalanced?

Tags

NGSS.MS-PS2-2

Keenan wants to see how much force it takes to move a block. He makes the following experimental setup.

Which of these changes to Keenan’s setup will require MORE force to move the block?

• Add a book to make the ramp higher.

• Make the wooden block smaller.

• Exchange the wooden block for a lighter foam block.

• Rearrange the books so that the smallest book is at the bottom

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Keenan wants to see how much force it takes to move a block. He makes the following experimental setup.

What will MOST LIKELY happen if Keenan lets go of the spring scale?

• The books will fall over.

• The wooden block will not move.

• The wooden block will move up the ramp

• The wooden block will move down the ramp.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Ami makes a model of a car using cardboard, a straw, and a balloon. Ami fills the balloon with air and uses the force of the air to move the model car. She measures how far the car travels. How will each change in the design affect the motion of Ami’s car? Write the letter of each answer in the correct box.

• Will move farther: A, B, D

  Will not move as far: C, E, F

• Will move farther: C, B, D

  Will not move as far: A, E, F

• Will move farther: A, B, E

  Will not move as far: C, D, F

• Will move farther: A, B, F

  Will not move as far: C, E, D

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How do you know if the forces on the cart are balanced AND what could you do to make the forces unbalanced? Read the question carefully.

Tags

NGSS.MS-PS2-2