Amplify forces

Amplify forces

Multiple Choice

Marcus traveled west for 2 hours at 50 mph.   He  then  traveled east for another hour at 25 mph. How many miles total  miles did Marcus travel?   (Speed = Distance/Time)  

• 25 miles 
• 75 miles
• 125 miles
• 150 miles 

Multiple Choice

Suzy's trip to the store takes 30 minutes. She stays inside the store for 10 minutes before returning home. She follows the exact same route home, making  her  total trip time one  hour and twenty minutes.  Which statement best describes Suzy's motion?

• She slows  down on  the return  trip.  
• She speeds up on  the  return trip. 
• Her speed remains constant.  
• Her speed gains  momentum. 

Multiple Choice

Which most affects a baseball's motion  when it is hit by a batter? 

• the mass of the  batter  and  how  high the ball was  thrown
• the mass of the batter and how  fast  the ball was thrown 
• the angle of the  baseball and  how hard  the batter hits the ball 
• the  mass  of  the  baseball and  how hard the  batter  hits it 

Multiple Choice

Which information is needed to  determine  how fast a  truck  is traveling? 

• direction and  mass  
• distance  and time 
• size and  speed 
• time  and  weight  

Multiple Choice

Marni runs 1500 meters around the  school  track.  What does she need to know in order to  find out her speed? 

• her time from  start  to  finish 
• the  number of steps  she  took 
• her  heart rate  at  the finish line 
• the direction  she began  running 

Multiple Choice

Rebecca and  Sara raced  each  other over  a distance of 100 meters.  Rebecca and Sarah  reached the end of the  100 meters at the same time.   Which best  describes the  motion of the  girls? 

• Rebecca ran faster  than  Sarah. 
• Sarah ran faster  than  Rebecca. 
• The  girls ran  in  opposite  directions.  
• The  girls ran at the exact same  average speed. 

Multiple Choice

Rebecca and  Sara raced  each  other over  a distance of 100 meters.  Rebecca and Sarah  reached the end of the  100 meters at the same time.   Which best  describes the  motion of the  girls? 

• Rebecca ran faster  than  Sarah. 
• Sarah ran faster  than  Rebecca. 
• The  girls ran  in  opposite  directions.  
• The  girls ran at the exact same  average speed. 

Multiple Choice

A car is traveling 50 mph .  It leaves Boston , Massachusetts at 5 a.m. and is traveling to Hartford, Connecticut, which  is 100  miles away.  Without traffic problems or stops, about what  time should the car arrive in Hartford?  

• 6:00 a.m. 
• 6:50 a.m.
• 7:00 a.m.
• 7:50 a.m.

Multiple Choice

1. An airplane leaves California and flies to North  Carolina.  The airplane travels 5 hours at a speed of 804 km per hour.  Which  statement about this trip is true?  (speed = distance/time) 

• California is about  4,020 km from North Carolina.  
• California  is about  800 km from North Carolina. 
• California is about 160 km from North  Carolina.  

Multiple Choice

Speed is different from velocity because

• Velocity has a direction
• Speed uses Distance /Time
• Velocity doesn't include time
• Velocity doesn't include distance

Multiple Choice

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

Multiple Choice

In a car, a good frame of reference would be:

• The trees you are driving past in the car

• the tissue box sitting inside your car

• the old lady riding a unicycle beside your car in the same direction and at the same speed

Multiple Choice

A change in ________ in a certain amount of time is motion.

• speed

• appearance

• position

• weight

Multiple Choice

The rate at which something moves is what?

• time

• space

• sound

• speed

Multiple Choice

Velocity is speed with __________________________.

• a unicycle helmet

• direction

• fight

Multiple Choice

TRUE or FALSE if you push a box across a surface like Ice with no friction, it will NEVER stop

• TRUE, as long as it doesn't run into something it will keep going and going and going

• FALSE, it will stop very quickly

Multiple Choice

Which of these materials do you predict would have the MOST amount of friction

• Metal

• Tile

• Sand Paper

• Denim

Multiple Choice

When you jump out of a plane to go skydiving 🪂 you thankfully have a parachute so you can safely land 🛫. Which answer choice explains why the parachute helps you land safely

• While gravity pulls you down very quickly, Air Resistance (fluid friction) pushes back against gravity and your parachute, slowing you down

• While gravity pushes you down very slowly, Air Resistance (fluid friction) pulls back against gravity and your parachute, which means you can land safely

• When you have a parachute gravity is not able to pull you down as fast as it normally can

• The parachute will get caught on something on your way down which will save your life

Multiple Choice

True or False: objects that are smooth have LESS friction than objects that are rough

• TRUE

• FALSE

Multiple Choice

Friction _____________ motion

• Works in the same direction as

• Opposes

• Has not effect on

• Pulls against

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