Science 3 What is Force and Motion and Reference Point

Science 3 What is Force and Motion and Reference Point

What is force?

A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects.

STATIONARY VS MOVING

• STATIONARY- if the object does not change its position

• MOVING- if the object changes its position

POINT OF REFERENCE- the background or object that is used for comparison

Multiple Choice

What is a reference point?

• A reference point is a place or object used for comparison to determine if something is in motion.

• Object that is fixed relative to Earth and not moving.

• A reference point a point used to find or describe the location of something.

• All of these are correct.

Multiple Choice

What is a force?

• a push or pull

• speed or acceleration

• potential or kinetic energy

• balanced or unbalanced force

Multiple Choice

The process of changing distance or position from another object

• reference point

• location

• acceleration

• motion

Multiple Choice

When it comes to describing the location based on the reference point, what must each description always include?

• distance and direction

• distance and position

• direction and location

• location and position

Multiple Choice

You call your best friend up, and the two of you agree to meet up at the basketball court before going to grab a bite to eat. What is the reference point in this scenario?

• food

• basketball court

• cellphone

• grab

Multiple Choice

Which of the following can be used as a reference point?

• house

• building

• tree

• All of these.

Multiple Choice

Mrs. Lorna's class is playing tug of war at recess. They decide to play boys against girls. There are 11 girls and 6 boys. As soon as the game began, the girls were able to move the rope to their side. Why?

• There was an equal amount of force pulling on each side making it unbalanced.

• There was an equal amount of force pushing on each side making it unbalanced.

• There was more force on the girls side making it unbalanced.

• There was less force on the girls side making it unbalanced.

Multiple Choice

An unbalanced force is when objects move in one direction because the force is greater from that direction.

• true

• false

Multiple Choice

What is the force that causes everything to be pulled down to the Earth?

• friction

• gravity

• balanced

• unbalanced

Multiple Choice

When objects remain in the same place, it is called...

• gravity

• friction

• balanced force

• unbalanced force

Multiple Choice

A car is driven for 3 hours. What else do you need to know to describe this car’s speed?

• the road the car in driven on

• the time of day

• the distance the car is driven

• the number of passengers in the car

Multiple Choice

An object's distance in a certain direction from a reference point

• reference point

• distance

• displacement

• position

Multiple Choice

Jerry walked from home to school, then from the school to the park. What is his total distance?

• 2 km

• 5 km

• 8 km

• 10 km

Multiple Choice

The location of an object relative to another object (the reference point)describes the _______ of an object.

• Distance

• Speed

• Position

Multiple Choice

John was blowing a feather across the dinner table. When he was blowing with all the breathe he had in him the feather went across the entire table, but when he just blew a little it only went to the edge of his plate. What statement best describes why the feather went across the table?

• John used a strong blowing force causing the feather to travel a greater distance.

• John used a weak blowing force causing the feather to travel a greater distance.

• John used a pulling force to cause the feather to travel a greater distance.

• John is a fire breathing dragon.

Multiple Choice

What pulls a ball back to earth?

• Gas

• Gravity

• Friction

• Molecules

Multiple Choice

What street is West of the Library?

• Main Street

• Fifth Street

• Berry Drive

• Dale Lane

Multiple Choice

Ariana lives on the corner of which two streets?

• Main Street and Fifth Street

• Fifth Street and Berry Drive

• Elm Court and Fifth Street

• Elm Court and Twisted Lane

Multiple Choice

_______ lives closest to the park.

• Ariana

• Catherine

• Ruth

• David

Multiple Choice

On what street is the supermarket located?

• Dale Lane

• Main Street

• Twisted Lane

• Fifth Street

Multiple Choice

How many people live North of Fifth Street?

• 1

• 2

• 3

• 4

Multiple Choice

Catherine would walk _____ to get to David's house.

• North

• East

• South

• West

Multiple Choice

The park is _______ of the supermarket.

• North

• East

• South

• West

Multiple Choice

Ariana lives on the corner of which two streets?

• Main Street and Fifth Street

• Fifth Street and Berry Drive

• Elm Court and Fifth Street

• Elm Court and Twisted Lane

Multiple Choice

What special features do most maps show?

• mountains, rivers, and forests

• big and small

• in a helicopter looking down

• two lines that look like a plus sign