TRUE or FALSE: When two objects with different masses collide, only the larger object exerts a force on the smaller one, causing it to move.
FALSE - both objects exert equal and opposite forces on each other
Oops!
Check
Okay!
Check
lifesaver
Give 25 points!
Oops!
rocket
Go to first place!
Okay!
gift
Win 25 points!
Okay!
lifesaver
Give 15 points!
Oops!
15
Amber hikes 10 miles East then 5 miles West. The trip takes her 5 hours. What is her velocity?
1 mile per hour East
Oops!
Check
Okay!
Check
15
You are riding in a car with your family. The car is going 50 km/hr. How fast are you moving relative to your family?
0 km/hr - you are all traveling at the same speed, so compared to them, you are not moving
Oops!
Check
Okay!
Check
15
You use a ping pong ball to knock your friends water bottle off their desk. The water bottle falls backward, but the ping pong ball also bounces back towards you. Why does this happen?
Newton's 3rd Law: The ping pong ball exerted a force on the water bottle, but the water bottle exerted a force back on the ping pong ball, pushing it back.
Oops!
Check
Okay!
Check
thief
Give points!
5
10
15
20
25
shark
Other team loses 10 points!
Okay!
gift
Win 20 points!
Okay!
lifesaver
Give 25 points!
Oops!
15
What is the acceleration of a hovercraft if the mass of a person onboard is 68 kg and the amount of force acting on them is 408 N.
6 m/s2
Oops!
Check
Okay!
Check
15
Object A and B both have a mass of 50 kg. If object A accelerates slower than object B, on which object was more force applied?
Object B
Oops!
Check
Okay!
Check
15
A frog jumps off of a lily pad, which is in the water, onto a rock. Which will move - the lily pad, the rock, or both, and in which direction?
The lily pad will move away from the rock.
Oops!
Check
Okay!
Check
15
A golfer uses his club to hit his ball across the green. Why does the ball accelerate away from the club more than the club moves away from the ball?
The ball has less mass, so the same amount of force that is applied to both causes the ball to move farther.
Oops!
Check
Okay!
Check
banana
Go to last place!
Oops!
shark
Other team loses 25 points!
Okay!
shark
Other team loses 25 points!
Okay!
thief
Give points!
5
10
15
20
25
15
Amber hikes 10 miles East then 5 miles West. The trip takes her 5 hours. What is her displacement?
5 miles East
Oops!
Check
Okay!
Check
boom
Lose 50 points!
Oops!
magnet
Take 5 points!
Okay!
gift
Win 25 points!
Okay!
thief
Give points!
5
10
15
20
25
15
What type of motion could line C represent - a bird landing in sand, a car accelerating away, a car coming to a sudden stop, or a horse slowing from a trot to a walk?
a car accelerating away
Oops!
Check
Okay!
Check
15
Why is the front of a car designed to crumple during a crash?
It increases the amount of time it takes for the crash to happen, which decreases the acceleration, which decreases the amount of force from the impact.
Oops!
Check
Okay!
Check
15
What type of motion does line B represent - an object moving at a constant speed, and object at rest, or an object moving at an increasing speed?
