S8P3 Review

1. S8P3a ~ 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.

5. S8P3a ~ A piece of driftwood is floating straight down a stream at a constant speed. Select the two correct answers that describe the driftwood's motion.

• The driftwood has constant velocity.

• The driftwood has increasing velocity.

• The driftwood has decreasing velocity.

• The driftwood is accelerating.

• The driftwood has zero acceleration.

6. S8P3a ~ A sled is slowing down at the bottom of a snowy hill. Select the two correct answers that describe the sled's motion.

• The sled has constant velocity.

• The sled has increasing velocity.

• The sled has decreasing velocity.

• The sled is accelerating.

• The sled has zero acceleration.

Tags

NGSS.MS-PS3-5

7. S8P3a ~ An antelope is running faster and faster away from a hungry lion. Select the two correct answers that describe the antelope's motion.

• The antelope has constant velocity.

• The antelope has increasing velocity.

• The antelope has decreasing velocity.

• The antelope is accelerating.

• The antelope has zero acceleration.

Tags

NGSS.MS-PS3-5

8. S8P3a ~ A golf ball is sitting still on the grass three feet from the hole. Select the two correct answers that describe the golf ball's motion.

• The golf ball has constant velocity.

• The golf ball has increasing velocity.

• The golf ball has decreasing velocity.

• The golf ball is accelerating.

• The golf ball has zero acceleration.

9. S8P3b ~ Ross and Kenneth are playing tug-of-war. Ross is pulling on one end of a rope with a force of 230 N. Kenneth is pulling on the other end of the rope with a force of 300 N. Based on only the forces described, which statement describes the forces on the rope?

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

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

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

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

Tags

NGSS.MS-PS2-2

10. S8P3b ~ A calico cat is asleep in a box. Earth's gravity is pulling down on the cat with a force of 40 N. The bottom of the box is pushing up on the cat with a force of 40 N. Based on only the forces described, which statement describes the forces on the cat?

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

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

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

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