Force and Motion

A book sitting on a desk has....

• Balanced forces acting on it

• Unbalanced forces acting on it

• No forces acting on it

• All forces acting on it

If a ball and a piece of paper are dropped from the same height they will

• Hit the ground at the same time because of gravity

• Hit the ground at different times because of gravity

• Hit the ground at different times because of friction

• Hit the ground at different times because of air resistance

What can make an object start moving, stop moving or change direction?

• Gravity

• Work

• Force

• Inertia

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

4 balls are thrown with the same amount of force. Which ball will go further?

• 100kg

• 250kg

• 500kg

• 750kg

Tags

NGSS.MS-PS2-2

The tendency of an object to stay at rest or stay in motion is called

• Friction

• Newton

• Force

• Inertia

The ________ the mass of the object, the _______ the force required to move or stop the object.

• Greater; Greater

• Smaller; Greater

• Greater; Smaller

• Smaller; Smaller

Tags

NGSS.MS-PS2-2

Your mom is driving you in a car that is going 60mph. She slams on the brakes! Why does your body go forward?

• Inertia

• Force

• Gravity

• Motion

A football player kicks a ball into the air. It falls to the ground, rolls then stops. What two forces cause the ball to stop?

• Gravity and Friction

• Force and Friction

• Force and Motion

• Force and Gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Distance = 300 m

Time = 5 sec

Calculate the speed:

• 60 m/s

• 6 m/s

• 30 m/s

• 300 m/s

If you move 50 meters at a speed of 10 m/s, how long will it take?

Calculate the time:

• 50 seconds

• 5 seconds

• 10 seconds

• 100 seconds