TNReady Science Practice

Which statements accurately describes the motion of the car.

• The car is moving forward

• The car is stationary.

• The car is moving backwards.

• The car is turning.

You can increase the strength of an electromagnet’s field by...

• decreasing the current in the solenoid

• decreasing the number of loops in the solenoid.

• using a stronger ferromagnetic material for the core.

• winding the coils more loosely.

Tags

NGSS.MS-PS2-3

Why do you see lightning from a distant storm before you hear thunder?

• The thunder is produced after the lightning.

• Your eyes react faster than your ears.

• Light travels faster than sound.

• Sound travels faster than light.

If you double the mass of an object with the same force applied on it, the acceleration will

• double

• cut in half

• the same

• zero

Tags

NGSS.MS-PS2-2

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Add more coils of wire to the nail.
• Use a smaller battery.
• Reverse the poles of the magnet.
• Remove all the coils and the nail.

Tags

NGSS.MS-PS2-3

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

• wire, iron, electric
• electric, wire, iron
• iron, electric, wire
• excited, hair, apple

If you double the amount of force exerted on an object, what is going to happen to the acceleration?

• It will increase.

• It will decrease.

• It will remain the same

Tags

NGSS.MS-PS2-2

Which wave has a higher frequency?

• 1

• 2

• 3

Which wave has the shortest wavelength?

• 1

• 2

• 3

Which type of EM wave has the least energy?

• Radio

• Infrared

• Visible

• Gamma