Force Motion 2020

While you’re ice-skating with your friends, you push off from one end of the rink and slide forward. Based on Newton’s first law of motion, what is true?

• You will lose your balance and fall

• Gravity will keep your velocity unitl you stop

• You will slide on the ice until a force changes your direction

• The size of your skates will decide how far you slide

How is velocity different from speed?

• Velocity is both speed and direction

• Velocity is an object in reverse

• Velocity has nothing to do with speed

• Velocity is only a measure of direction

What does friction to an object?

• speeds it up

• slows it down

• forces it to move

• forces it to move up

What is the relationship between heavy objects and inertia?

• the heavier the object the less the inertia

• the heavier the object the more the inertia

• mass has nothing to do with inertia

• inertia has no relationship to mass

Which has more inertia--

• Truck
• Cat
• Ant
• Skateboard

Tags

NGSS.MS-PS2-2

If an object is stationary (not moving) the forces acting upon it are---

• Balanced
• Unbalanced
• Weak
• Hulk Smash?

Tags

NGSS.MS-PS2-2

A truck that is travelling at a constant speed is carrying some boxes.  If the truck comes to a sudden stop, what will most likely happen to the boxes?

• They will stay in the middle of the truck.
• They will slide toward the front of the truck.
• They will slide toward the back of the truck.
• They will fall off the side of the truck.

Tags

NGSS.MS-PS2-2

A student throws a ball against a wall.  Which statement best explains what is happening in the picture.

• The energy of the ball is destroyed as it strikes the wall.
• The energy of the ball becomes negative as it hits the wall.
• The force from the wall on the ball is equal and opposite to the force from the ball on the wall.
• The force exerted by the ball on the wall is greater than the force exerted by the wall on the ball.

Tags

NGSS.MS-PS2-1

When something has speed in a certain direction it is called ___________.

• motion
• position
• velocity
• speed

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.