Unit 3 Practice Quizizz

A snowboarder practices sliding down a hill. The diagram shows three positions of the snowboarder. Which table best compares the amounts of potential energy and kinetic energy of the snowboarder at each position?

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Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

The table shows the motion data for two objects during two trials of an investigation. Which object travels at the greater average speed?

• Object 1, because it travels the greater distance per unit of time.

• Object 1, because it travels the longer amount of time.

• Object 2, because it travels the shorter amount of time.

• Object 2, because it travels the shorter distance per unit of time

Tags

NGSS.MS-PS3-1

Students push a cart along a smooth floor and collect data to produce the graph shown. The students use this data to determine and graph the velocity of the cart. Which graph accurately represents the velocity of the cart?

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Which action represents a conversion of chemical energy into mechanical energy?

• Pancakes reheated in a microwave oven

• Soup beginning to boil on a stove

• A grasshopper jumping from a predator

• Sunlight melting an icicle

An unbalanced force of 32 newtons is shown acting on an 8.0-kilogram object. Based on this information, what is the acceleration of the object? (no decimal)

Tags

NGSS.MS-PS2-2

Carts of different masses are pulled along a flat surface. The table shows some variables for each cart. Which two carts experience the same net force?

• Carts 1 and 2

• Cart 1 and 3

• Cart 2 and 3

• Cart 2 and 4

Tags

NGSS.MS-PS2-2

A motorcycle travels 8.9 meters per second around a track. The dotted line shows the path of the motorcycle. The arrows shows the direction of the motorcycle at position 1. Which comparison of the motorcycle's motion is correct?

• At position 1 and 3, the velocities are the same, but the accelerations are different.

• At positions 1 and 4, the speeds are the same, but the velocities are different.

• At position 2 and 3, the accelerations are the same, but the velocities are different.

• At position 2 and 4, the velocities are the4 same, but the speeds are different

A student investigates the motion of a toy vehicle. The student graphs 40 seconds of data from the investigation. Which statement best describes the motion of the toy vehicle during the first 30 seconds of the investigation?

• The vehicle was travelling at a constant speed.

• The vehicle was accelerating at a constant rate.

• The speed of the vehicle was increasing.

• The acceleration of the vehicle was increasing.

Tags

NGSS.MS-PS3-1

A plastic tube is arranged on a lab tabletop as shown. A small sphere enters one end of the tube to come out the other end of the tube. Which diagram shows where the sphere will go first when it leaves the tube?

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Tags

NGSS.MS-PS2-2

A steel ball is at one end of a box that is moving forward as shown. The box suddenly stops. According to Newton's first law, what happens to the steel ball just after the box stops?

• Because of friction, the ball continues rolling forward at the same speed.

• Because of friction, the ball rolls forward at an increased speed.

• Because of inertia, the ball continues rolling forward at the same speed

• Because of inertia, the ball rolls forward at an increased speed.