Force & Motion

A ball is moving in a certain direction.  What would happen to the ball if a greater force was applied on the ball along its direction of motion?

• The speed of the ball would decrease.
• The speed of the ball would increase.
• The ball will stop instantly.
• The ball will change direction.

Tags

NGSS.MS-PS2-2

Mr. Sinyard is jumping up in the air.  What happens at the highest point of his jump?

• Gravity becomes weaker.
• The force of his jump pulls him back down.
• Gravity starts to pull him back down.
• The force of his jump becomes greater than gravity.

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NGSS.MS-PS2-2

NGSS.MS-PS2-4

Why does a rolling ball stop?

• Gravity
• Friction
• Waterfalls
• Sand

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Why is person B having a hard time moving down the hill?

• Person B has more friction than person A.
• Person B has the same friction as person A.
• Person B is out of shape.
• Person B has less friction than person A.

A _____________________ must be exerted on an object at rest to cause it to move.

• weight
• inertia
• force
• gravity

Tags

NGSS.MS-PS2-2

An object pushing on another object, slowing it.

• Pull
• Push
• Friction
• Motion

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

What will happen if you were to drop a 16mm steel marble and a 16mm cork marble onto the floor from the same height and at the same time?

• The steel marble will land first.

• The cork marble will land first.

• Both the steel marble and the cork marble will land at the same time.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A student places a ball on the ground and kicks it hard. The ball moves along the ground. Which statement is true?

• The kick decreases the weight of the ball

• The kick applies force, which changes the direction of the ball.

• The kick decreased the force of gravity acting on the ball.

• The kick removes friction between the ball and the ground.

Tags

NGSS.MS-PS2-2

Which ball would create more force upon impact?

• a fast moving ball

• a slow moving ball

• a ball at rest

• none of the above

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1