5.6 Science STAAR

(8.6A) For an investigation, a student measures the speed of a cart as it rolls down a ramp. The student then records data in the table below.
Which of these best explains the student's data?

• The speed of the cart decreases as the cart rolls down the ramp because of friction between the cart and the ramp.
• The speed of the cart increases as the cart rolls down the ramp because the force acting on the cart is greater than the force of gravity.
• the speed of the cart increases as the cart rolls down the ramp because the forces acting on the cart are unbalanced.
• the speed of the cart decreases as the cart rolls down the ramp because the forces acting on the cart are balanced

Tags

NGSS.MS-PS2-2

How is the use of sound waves helpful to this whale?

• It helps the whale locate food.
• It makes the water warmer.
• It makes it easier to obtain oxygen.
• It signals fish to move out of the whale’s path.

Tags

NGSS.MS-PS4-2

Which form of energy is being used by the toaster?

• Chemical
• Electrical
• Solar
• Nuclear

Which object helps people understand what makes up white light?

• Barometer
• Prism
• Microscope
• Thermometer

Tags

NGSS.MS-PS4-2

The flower’s stem appears larger under water because the water —

• absorbs light
• produces light
• repels light
• refracts light

Tags

NGSS.MS-PS4-2

A class prepared some electric circuits using a battery, connecting wires, and three light bulbs. Which of these circuits can make the three bulbs light?

•                          A
•                          B
•                          C
•                          D

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-3

A shiny aluminum screen can be placed on the windshield of a parked car.This screen helps to keep the car cool because it —

• reflects the sunlight
• absorbs heat
• causes evaporation
• conducts electricity

Tags

NGSS.MS-PS3-3

NGSS.MS-PS4-2

One way in which light waves are different from sound waves is that light waves --

• can move through empty space
• are caused by rapid vibrations
• travel more slowly
• can be reflected

5.2c - In which place would sound waves NOT be able to travel when a steel pipe is struck with a metal wrench?

• outer space

• bottom of the ocean

• top of a mountain

• in a hot air balloon

Tags

NGSS.MS-PS4-2

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2