Q2 - Review lessons in science

What do we call a place used for comparison to determine if something is in motion?

• a. velocity

• b. a constant

• c. a position

• d. point of reference

Arnold woke up late in the morning. What must he do to arrive in school on time?

• a. do nothing

• b. walk to school

• c. run to school

• d. go back to sleep

Which is used in measuring distance?

• a. meterstick

• b. ruler

• c. tape measure

• d. all of the above

What is the best tool in measuring the distance from your classroom to the principal's office?

• a. meterstick

• b. ruler

• c. tape measure

• d. speedometer

Which is the reference point of a boy leaving home for school?

• a. Canteen

• b. Classroom

• c. Home

• d. School ground

If Sarah finished a 200-meter race in 20 seconds, what was her speed?

• a. 0.01 m/s

• b. 10 m/s

• c. 400 m/s

• d. 4000 m/s

A car travels 120 kilometers in 3 hours. What is its average speed?

• a. 40 km/h

• b. 43 km/h

• c. 60 km/h

• d. 120 km/h

What do you call the materials that allow electricity and heat to flow freely through them?

• a. circuit

• b. conductors

• c. electromagnet

• d. insulators

The following materials are good conductors of heat and electricity EXCEPT one. Which one is it?

• a. barbecue stick

• b. iron nails

• c. metallic paper clips

• d. thumbtacks

Which of the following materials does NOT allow the flow of electricity?

• a. pins

• b. scissors

• c. thumbtacks

• d. tissue