1.1 Describing Force & Motion Homework

Multiple Choice

What is needed to describe the motion of an object?

• Temperature

• Reference Point

• Color

• Volume

Multiple Choice

If an object changes its position relative to a reference point, what is it doing?

• remaining stationary

• Reversing

• Moving

• Shrinking

Multiple Choice

What is relative motion?

• motion compared to another object's motion
  

• Motion in a straight line

• Motion under water

• Motion that never stops

Multiple Choice

Which of the following describes a balanced force?

• Forces that can cause an object to accelerate.
  

• Forces that change the shape of an object

• Forces that do not change the motion of an object

• Forces applied in one direction only

Multiple Choice

What happens when unbalanced forces act on an object?

• The object remains at rest.

• The object changes its motion.

• The object changes color

• The object becomes lighter.

Multiple Choice

Suppose a bulldozer is being hauled on the back of a flatbed truck at 50 km/h to a construction site. From which reference point would the bulldozer not appear to be moving?

• the road

• a traffic light

• the truck driver

• a roadside tree

Multiple Choice

Carmen is helping load furniture and boxes onto a moving truck. She picks up boxes of her things, places them on a cart, and pushes the cart to the moving van. Which term best describes the type of force Carmen is using?

• contact

• friction

• gravity

• noncontact

Multiple Choice

Ahmed saw all of these things as he walked to school this morning. Which one is an example of a force pushing downward toward the ground?

• A bird sat on a telephone wire.

• A woman moved her child from one place to another in a wagon.

• A man pulled weeds in his garden.

• A dog tugged on a rope held by a child.

Multiple Choice

Mr. Birks works in a recycling center. Recyclable materials arrive at the center mixed together. Workers use magnets to separate steel cans from other items. Which statement is true about the force between a steel can and a magnet?

• Gravity pushes the can toward the magnet.

• The force between the can and the magnet is a contact force.

• The attraction between the can and the magnet is a pull.

• The attraction between the can and the magnet is a push.

Multiple Choice

In the International System of Units, the unit for a strength of a force is called a ____________.

• Net Force

• Meter

• Newton

• Gravity

Multiple Choice

What is the combination of all forces acting on an object?

• Net Force

• Meter

• Newton

• Gravity

Multiple Choice

Ways an object's motion can change are by _______________.

• start, stop, slow down, speed up, change direction

• stop and start only

• slow down, speed up

• change direction only

Multiple Choice

If the car next to you pulls forward, in which direction do you feel like you are moving?

• left

• right

• forward

• backward

Multiple Choice

Choose the best reference point in the image provided.

• passenger

• road sign

• car tire

• cyclist

Multiple Choice

Which statements in the image, shows the bike is in motion?

• 1,2 and 3

• 2, 3 and 4

• 1, 2 and 5

• 2, 4 and 5

Multiple Choice

If you push with a force of 6N, and an object doesn't move, what force is it exerting on you?

• 0N

• 5N

• 6N

• 10N

Multiple Choice

What is the net force?

• 2 N towards Janelle

• 2 N towards Mac

• no movement

• 38 N to the right

Multiple Choice

Which of the following is true of the picture?

• It is balanced.

• It moves to the left.

• It is unbalanced.

• It resists movement.

Multiple Choice

A push or pull of an object.

• force

• friction

• gravity

• resistance

Multiple Choice

Friction is a force that opposes __________.

• gravity

• motion

• inertia

• momentum

Multiple Choice

A force that causes objects to move by touching them.

• balanced

• noncontact

• contact

• relative

Multiple Choice

Which is non contact force.

• friction

• gravity

• balanced

• object