1-6 P2 Forces and Trains

Reorder

Arrange the steps below in the correct order to show how an early steam train moved.

• burned coal or wood in locomotive

• a tank of water is heated

• water became steam

• The motion energy starts moving the train

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Choice

Which of the following are benefits of using lighter metals in train construction?

• Needs less force to move

• Increase fuel consumption

• decrease train speed

Multiple Choice

Which of the following were problems caused by the need to stop trains for lubrication in McCoy's time?

• Trains became faster

• Less fuel was needed

• The process was expensive

Fill in the Blank

Elijah McCoy invented a way to lubricate train engines without the need to ____ the train.

Fill in the Blank

Elijah McCoy ended up with ___ patents for his engineering designs and inventions.

Multiple Choice

How does removing friction benefit maglev trains?

• It makes the train rides noisy and rough.

• It slows down the train.

• It makes train rides quiet and smooth.

• It increases pollution.

Dropdown

Match the following

Same poles -

Select answer

Opposite poles -

Select answer

Multiple Select

Which of the following are features of electrical magnets?

choose all correct answers

• They can be turned on and off.

• Their poles can be switched.

• Their strength can be controlled.

• They are always permanent magnets.

Dropdown

Select the correct expression:

A ​

Select answer

is a certificate from the government that gives an inventor credit for an invention.

To ​

Select answer

means to float in the air

​

Select answer

is the process of using oil or grease to reduce friction between moving parts.