20 questions
What is the speed of a runner who runs 400 meters in 40 seconds?
10 meters/second
40 meters/second
100 meters/second
1,600 meters/second
An unbalanced force is when objects move in one direction because the force is greater from that direction.
true
false
An automobile you are riding in suddenly stops, why does your body continue to go forward?
An object in motion stays in motion.
Gravity pulls your body towards the earth.
Friction makes your body slow down.
If you push a tennis ball, a bowling ball, and a basketball with the same amount of force, which one will go farthest?
bowling ball
tennis ball
basketball
If a magician pulls a table cloth from under a table of dishes, what should happen based on Newton's 1st law?
The dishes will stay in place on the table.
The dishes will fall to the ground.
The dishes will accelerate and then slow down.
It is much more difficult to move a dresser full of clothes than an empty dresser. Why?
An object in motion stays in motion.
It takes more force to move an object with more mass.
It takes more friction to move the empty dresser.
A force of 90N is applied to each cart below, which one will accelerate the fastest?
The cart that weighs 5 kg.
The cart that weighs 10 kg.
The cart that weighs 12 kg.
The cart that weighs 15 kg.
Michelle drove 300 miles in 6 hours. What was Michelle’s speed?
30 miles per hour
50 miles per hour
60 miles per hour
80 miles per hour
What is an example of a balanced force?
a person pushing a car across the road
two people pushing a box with the same force
a boat slowing down on a lake
Which is true?
objects with less mass require less force
objects with less mass require more force
objects with more mass require less force
Imagine a person pushing a box across the floor. What will increase the speed of the box moving?
the person applying less force to the box
the person applying a greater force to the box
increase the mass of the box