Grade 3 Science Exam

-------------------is the distance an object moves in a certain amount of time.

• Position

• Distance

• Speed

A force that is caused by two surfaces rubbing together is

• Gravity

• Friction

• Magnetism

Which example has the most friction?

• Fatima rides her bike on a paved smooth street

• Fatima rides her bike on a grassy field

• Fatima rides her bike on a rocky road

A car moves 15 meters in 5 seconds. Calculate the speed of the car

• 5 m/s

• 10 m/s

• 3 m/s

• 20 m/s

A student on a skateboard goes 18 meters in 2 seconds. Calculate the speed of the student

• 9 m/s

• 16 m/s

• 32 m/s

• 20 m/s

Gravity is

• A force that attracts things that are made of iron

• A force that pulls objects to the center of the earth

• A force that occurs when two surfaces rub against each other

What happens when force is applied to an object?

• The object speeds up

• The object slows down

• The object changes direction

• All of the above

------------------is the measure of the force of gravity acting on an object.

• Mass

• Force

• Weight

Which of the following objects doesn't have chemical energy?

• Battery

• Pen

• Banana

• Gasoline

The weight of a monkey on the Earth is 12 N. What will be its weight on the moon?

• 2N

• 12N

• 15N