S8P3 Review

S8P3b ~ An ice cube is floating in a glass of water. Earth's gravity is pulling down on the ice cube with a force of 0.1 N. The water is pushing up on the ice cube with a force of 0.1 N. Based on only the forces described, which statement describes the forces on the ice cubes?

• The forces are balanced, so there is no net force on the ice cubes.

• The forces are balanced, so there is a net force on the ice cubes.

• The forces are unbalanced, so there is no net force on the ice cubes.

• The forces are unbalanced, so there is a net force on the ice cubes.

Tags

NGSS.MS-PS2-2

S8P3c ~ People are riding buses to work in the morning. The buses are all the same, but they are carrying different numbers of people. The buses are going the same speed, and each bus is one block away from its next stop. Based on the chart, order the buses from least to greatest to show the size of the force applied to each bus.

• B43, M2, CT5, X9, SL1

• SL1, X9, CT5, M2, B43

• B43, CT5, M2, SL1, X9

• X9, SL1, M2, CT5, B43

Tags

NGSS.MS-PS2-2

S8P3c ~ Horses are walking side by side while each pulls a cart from the field to the barn. The carts are identical, but each has a different load of objects. It starts to rain, and the horses speed up. Each horse pulls with the same force to get back to the barn quickly. Based on the chart, order the loads from greatest to least to show the size of the acceleration each cart will have.

• bundle of wheat, large stone, bag of soil, sack of compost

• sack of compost, bag of soil, large stone, bundle of wheat

• bag of soil, bundle of wheat, large stone, sack of compost

• sack of compost, large stone, bundle of wheat, bag of soil

Tags

NGSS.MS-PS2-2

S8P3c ~ A darts player is throwing new darts at a target to test them out. The player applies the same force to each dart as she is throwing it. Based on the chart, order the darts from least to greatest to show the size of the acceleration each dart will have as it is being thrown.

• blue, green, gold, red, silver

• silver, red, gold, green, blue

• silver, green, red, blue, gold

• gold, blue, red, green, silver

Tags

NGSS.MS-PS2-2

Which of the following is a longitudinal wave?

• Light wave

• Sound wave

• Water wave

• Radio wave

S8P3c ~ A tugboat tows ships out of a harbor. The tugboat starts pulling the ships when they are stopped at a dock. The tugboat tows with the same force not matter the size of the ship. Based on the chart, order the ships from greatest to least to show the size of the acceleration each ship will have as it starts to move.

• Standard, Thunderer, Eden, Viceroy, Skipjack

• Skipjack, Viceroy, Eden, Thunderer, Standard

• Viceroy, Thunderer, Standard, Skipjack, Eden

• Eden, Skipjack, Standard, Thunderer, Viceroy

Tags

NGSS.MS-PS2-2

Which of the following are accelerating?

• a comic book that is sliding across a coffee table with decreasing speed

• a heavy textbook that a student is lifting straight up at a constant speed

• a partially finished coloring book that a girl is waving in a circle

Tags

NGSS.MS-PS2-2

2. S8P3a ~ Which of the following are accelerating?

• an SUV that is cruising north at a steady speed

• a mini van that is parked in a driveway during a storm

• a mail truck that is slowing down as it approaches a mailbox

Tags

NGSS.MS-PS2-2

3. S8P3a ~ Which of the following are accelerating?

• a cantaloupe that is curving to the right as it rolls down the aisle of a grocery store

• a heavy coconut that is speeding up as it falls from a tree toward the ground

• a pomegranate that is flying upward with decreasing speed after being tossed in the air

Tags

NGSS.MS-PS2-2

4. S8P3a ~ A motorcycle traveling at a constant speed is swerving to the right to avoid a pothole. Select the two correct answers that describe the motorcycle's motion.

• The motorcycle has constant velocity.

• The motorcycle has a changing velocity.

• The motorcycle is accelerating.

• The motorcycle has zero acceleration.