Force and Motion Prebiology

A car travels at constant speed. Constant speed is what type of force?

• displaced

• balanced

• unbalanced

• net

A car is slowing down, therefore being acted on by an unbalanced force. The car is

• stopping

• traveling at a constant speed

• accelerating

• increasing in speed

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

A force of net zero occurs when

• forces are of equal strength moving in the same direction on an object

• forces of unequal forces are moving in the same direction on an object

• forces of equal strength are moving in different directions on an object

• forces of unequal strength are moving in different directions on an object

Tags

NGSS.HS-PS2-1

Henry pushes a box with a force of 15N to the right and Jeff pushes the box with a force of 5 newtons to the left. What will happen?

• The box will move to the left with a combined force of 20N

• The box will move to the left with a force of 10N

• The box will move to the right with a combined force of 20N

• The box will move to the right with a force of 10N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What does mass do to the force and object has if the acceleration is constant?

• More mass decreases the force of an object

• More mass increases the force of an object

• Mass has not effect on force

• Mass only affects acceleration

Tags

NGSS.MS-PS2-2

What two forces work against motion?

• gravity and friction

• gravity and unbalanced forces

• unbalanced forces and friction

• friction and net force

According to Newton's first Law of Motion, an object in motion

• will stop

• will continue in motion in a straight line

• will cause a vibration

• push another object

A boat is accelerating at a rate of 25m/s² . The mass of the boat is 200kg. How much force is the boat exerting?

• 8N

• 100N

• 500N

• 5000N

Tags

NGSS.MS-PS2-2

A catapult releases a pumpkin with a force of 150N. The mass of the pumpkin is 10kg. At what rate will the pumpkin accelerate?

• 10 m/s²

• 15 m/s²

• 1500 m/s²

• 2000 m/s²

Tags

NGSS.MS-PS2-2

If thrust is 50N and gravity is 10N and the mass of the rocket is 8 kg, what will be the acceleration of the rocket?

• 2 m/s²

• 3 m/s²

• 4 m/s²

• 5 m/s²

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1