Force Motion Energy

Which is an unbalanced force?

• a person standing in the cafeteria

• Leaning against the fence at recess

• A person pushing the cafeteria door open

• A person sitting at lunch

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Why does an object resist motion when it rubs against something?

• friction is destroyed

• friction is produced

• friction is decreased

• friction is removed

Which is a true description of gravity's impact on an object?

• Gravity is unbalanced when a person is sitting

• gravity is balanced with another force when an airplane is flying steady

• gravity is balanced when you are sliding down a slide

• gravity is unbalanced with another force when a phone is sitting on a table

Tags

NGSS.3-PS2-1

NGSS.5-PS2-1

Which of the following would take the most force to move?

• lamp

• couch

• picture frame

• candle

Tags

NGSS.MS-PS2-2

Which is a balanced force?

• a skateboard rolling uphill

• a basketball bouncing backwards

• a bike leaned against a wall

• a soccer ball being kicked

Two dogs playing tug of war and neither are moving.

• balanced force

• unbalanced force

• no force

• gravity force

Luke and Jake are playing Tug of War. The rope moves towards Jake.

• Jake applies more force.

• Luke applies more force.

• force is equal between the two.

• there is no force applied to the rope.

Tags

NGSS.MS-PS2-2

The device with a hook on the end that measures force is a __________.

• thermostat

• thermometer

• spring scale

• hygrometer

Two boys pull a wagon in opposite directions, but together they move in one direction.

• The forces are balanced.

• The forces are unbalanced so the wagon is moving in one direction.

• The forces are not moving the wagon.

• The forces are balanced so the wagon is moving in one direction.

Tags

NGSS.MS-PS2-2

Students roll a car down a ramp. Once the car reaches the bottom what path will it most likely take?

• The car will stop.

• The car will turn left because of inertia.

• The car will continue in a straight line because of inertia.

• The car will turn right, because of balanced forced.

Tags

NGSS.MS-PS2-2