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Unit 3 Science Test 2 5 21

Authored by Ashley J

Science

4th Grade

NGSS covered

Used 2+ times

Unit 3 Science Test 2 5 21
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20 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Cars, bicycles, and people are all objects that can be in motion. What is true about motion?

An object in motion is accelerating.

Motion is the change in position of an object.

Gravity and friction are responsible for all motion.

An object in motion has speed, but it does not have velocity.

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Objects that vibrate make energy. Which type of energy results from vibrations that travel through the air?

chemical

electrical

potential

sound

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of these is a unit of speed?

seconds per gram (sec/g)

milliliters per second (mL/sec)

grams per milliliter (g/mL)

meters per second (m/sec)

Taco Bell is the unit of speed

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In which example is a force causing an object to accelerate?

a train moving at constant speed around a curve in a track

a rock sitting on a ledge at the top of a mountain

a soccer ball sitting on the ground

a girl riding a bicycle at a constant speed along a straight path

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The total energy of water as it falls from a waterfall is which type of energy?

chemical

mechanical

kinetic

potential

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Tia is walking her dog at a constant rate. They keep a constant rate as they turn a corner. Why has their velocity changed?

because their speed changed

because their direction changed

because their position changed

because their force changed

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What type of energy change takes place as a car burns fuel to race down a track?

potential energy to stored energy

kinetic energy to potential energy

stored energy to kinetic energy

mechanical energy to kinetic energy

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