HM Grade 4 Force and Motion

HM Grade 4 Force and Motion

Multiple Choice

The starting point describing the location of an object.

• displacement

• reference point

• positive direction

• negative direction

Multiple Choice

The people on a bus are not moving in relation the seats inside the bus, but they are in _______________ compared to the streets outside.

• position

• displacement

• reference point

• motion

Multiple Choice

Comparing your location to a starting point, or _______________, helps describe where you are.

• position

• relative

• specify

• reference point

Multiple Choice

Which tells POSITION?

• 45 mph
• to the left of the table and under a light
• 80 km

Multiple Choice

What is a change of position of an object?

• motion
• weight
• mass

Multiple Choice

A _____ moves an object closer to you.

• push
• pull
• friction
• cat

Multiple Choice

A push or pull that causes an object to move, stop, or change direction.

• force
• motion
• energy
• inertia

Multiple Choice

A _____________________ must be exerted on an object at rest to cause it to move.

• weight
• inertia
• force
• gravity

Multiple Choice

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

Multiple Choice

Which has the least friction?

• snowboard on a snowy hill
• running on the playground
• sandpaper on wood
• a racer on a track

Multiple Choice

Which of the following shows the direction of the friction force?

• A
• B
• C
• D

Multiple Choice

What is one way to reduce friction?

• Put sandpaper between the surfaces that touch.
• Push the surfaces closer together.
• Shine a light on the surfaces.
• Put a slippery substance between the surfaces.

Multiple Choice

_______ is a force that acts between two objects which are touching. This force slows any movement between the two objects.

• pressure
• magnetism
• friction

Multiple Choice

Why does a rolling ball stop?

• Gravity
• Friction
• Waterfalls
• Sand

Multiple Choice

Why is person B having a hard time moving down the hill?

• Person B has more friction than person A.
• Person B has the same friction as person A.
• Person B is out of shape.
• Person B has less friction than person A.

Multiple Choice

The rougher the surface, the faster an object will travel over the surface.

• True
• False

Multiple Choice

Friction is a force that acts in an ___________ direction of movement.

• similar
• opposite
• parallel
• west

Multiple Choice

On which surface will a toy sledge travel the least distance?

• Carpet

• Wood

• Ice

Multiple Choice

What does friction produce?

• light
• sound
• heat
• gravity

Multiple Choice

What two measurements are necessary for calculating speed?

• Mass and time
• Temperature and mass
• Mass and distance
• Distance and time

Multiple Choice

What is the speed of an object that travels 60 meters in 4 seconds?

• 240 m/s
• 15 m/s
• 0.067 m/s
• 15 mph

Multiple Choice

Find speed when distance is 142 km and time is 2 hours.

• 71km/hr
• 52km/hr
• 17km/hr
• 90km/hr

Multiple Choice

Alan travels 100 km in 5hrs. Find his average speed in km/h

• 5km/hr
• 10km/hr
• 50km/hr
• 20km/hr

Multiple Choice

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

Multiple Choice

A person walked 10 miles.  It took them 2 hours.  How fast were they walking?

• 8 mph
• 5 mph
• 2 mph
• 10 mph

Multiple Choice

How do we calculate speed?

• speed= distance divided by time

• distance = speed minus pace

• time = distance times time

• rate plus distance = distance plus time

Multiple Choice

Usian Bolt can run at a top speed of 28 mph.

• Speed

• Velocity

• Acceleration

Multiple Choice

What is velocity?

• Speed + Direction

• Speed Only

• Speed + Time

• Only Direction

Multiple Choice

What is this?

• Speed

• Velocity

• Acceleration

Multiple Choice

What is this?

"The car is traveling at 150 kilometers per hour"

• Speed

• Velocity

• Acceleration

Multiple Choice

What is this?

"Rocky is running 8mph North"

• Speed

• Velocity

• Acceleration

Multiple Choice

What is this?

"This airplane is traveling at 500 mph, West"

• Speed

• Velocity

• Acceleration

Multiple Choice

What is this?

A car is traveling 50 mph.

• Speed

• Velocity

• Acceleration